1# UDMF 2 3 4## Overview 5 6The Unified Data Management Framework (UDMF) defines standards for data management across applications, devices, and platforms, and provides a unified OpenHarmony data language and standard data access channels. 7 8**Since**: 12 9 10**System capability**: SystemCapability.DistributedDataManager.UDMF.Core 11 12 13## Summary 14 15 16### Files 17 18| Name| Description| 19| -------- | -------- | 20| [udmf.h](udmf_8h.md) | Defines the APIs, data structs, and enums for accessing the UDMF. <br/>File to include: <database/udmf/udmf.h> | 21| [udmf_err_code.h](udmf__err__code_8h.md) | Declares the error codes used in the UDMF. <br/>File to include: <database/udmf/udmf_err_code.h> | 22| [udmf_meta.h](udmf__meta_8h.md) | Declares the uniform data types. <br/>File to include: <database/udmf/udmf_meta.h> | 23| [uds.h](uds_8h.md) | Defines the APIs and structs related to the uniform data structs. <br/>File to include: <database/udmf/uds.h> | 24| [utd.h](utd_8h.md) | Defines APIs and structs related to the Uniform Type Descriptors (UTDs). <br/>File to include: <database/udmf/utd.h> | 25 26 27### Macros 28 29| Name| Description| 30| -------- | -------- | 31| [UDMF_KEY_BUFFER_LEN](#udmf_key_buffer_len) (512) | Minimum length of the buffer that holds the key (unique identifier) of a uniform data object.| 32| [UDMF_META_ENTITY](#udmf_meta_entity) "general.entity" | Generic type that represents all physical storage types. It is used to define physical properties of a type.<br>This type is uncategorized.| 33| [UDMF_META_OBJECT](#udmf_meta_object) "general.object" | Generic type that represents all logical content types. It is used to define physical properties of a type.<br>This type is uncategorized.| 34| [UDMF_META_COMPOSITE_OBJECT](#udmf_meta_composite_object) "general.composite-object" | Generic composite content type. For example, a PDF file that contains text and image.<br>This type belongs to **OBJECT**.| 35| [UDMF_META_TEXT](#udmf_meta_text) "general.text" | Generic text type.<br>This type belongs to **OBJECT**.| 36| [UDMF_META_PLAIN_TEXT](#udmf_meta_plain_text) "general.plain-text" | Text without specific encoding or identifier.<br>This type belongs to **TEXT**.| 37| [UDMF_META_HTML](#udmf_meta_html) "general.html" | HTML.<br>This type belongs to **TEXT**.| 38| [UDMF_META_HYPERLINK](#udmf_meta_hyperlink) "general.hyperlink" | Hyperlink.<br>This type belongs to **TEXT**.| 39| [UDMF_META_XML](#udmf_meta_xml) "general.xml" | XML.<br>This type belongs to **TEXT**.| 40| [UDMF_META_SOURCE_CODE](#udmf_meta_source_code) "general.source-code" | Generic source code type.<br>This type belongs to **PLAIN_TEXT**.| 41| [UDMF_META_SCRIPT](#udmf_meta_script) "general.script" | Source code in any scripting language.<br>This type belongs to **SOURCE_CODE**.| 42| [UDMF_META_SHELL_SCRIPT](#udmf_meta_shell_script) "general.shell-script" | Shell script.<br>This type belongs to **SCRIPT**.| 43| [UDMF_META_CSH_SCRIPT](#udmf_meta_csh_script) "general.csh-script" | C shell script.<br>This type belongs to **SHELL_SCRIPT**.| 44| [UDMF_META_PERL_SCRIPT](#udmf_meta_perl_script) "general.perl-script" | Perl script.<br>This type belongs to **SHELL_SCRIPT**.| 45| [UDMF_META_PHP_SCRIPT](#udmf_meta_php_script) "general.php-script" | PHP script.<br>This type belongs to **SHELL_SCRIPT**.| 46| [UDMF_META_PYTHON_SCRIPT](#udmf_meta_python_script) "general.python-script" | Python script.<br>This type belongs to **SHELL_SCRIPT**.| 47| [UDMF_META_RUBY_SCRIPT](#udmf_meta_ruby_script) "general.ruby-script" | Ruby script.<br>This type belongs to **SHELL_SCRIPT**.| 48| [UDMF_META_TYPE_SCRIPT](#udmf_meta_type_script) "general.type-script" | TypeScript source code.<br>This type belongs to **SCRIPT**.| 49| [UDMF_META_JAVA_SCRIPT](#udmf_meta_java_script) "general.java-script" | JavaScript source code.<br>This type belongs to **SCRIPT**.| 50| [UDMF_META_C_HEADER](#udmf_meta_c_header) "general.c-header" | Header file in C.<br>This type belongs to **SOURCE_CODE**.| 51| [UDMF_META_C_SOURCE](#udmf_meta_c_source) "general.c-source" | Source code in C.<br>This type belongs to **SOURCE_CODE**.| 52| [UDMF_META_C_PLUS_PLUS_HEADER](#udmf_meta_c_plus_plus_header) "general.c-plus-plus-header" | Header file in C++.<br>This type belongs to **SOURCE_CODE**.| 53| [UDMF_META_C_PLUS_PLUS_SOURCE](#udmf_meta_c_plus_plus_source) "general.c-plus-plus-source" | Source code in C++.<br>This type belongs to **SOURCE_CODE**.| 54| [UDMF_META_JAVA_SOURCE](#udmf_meta_java_source) "general.java-source" | Source code in Java.<br>This type belongs to **SOURCE_CODE**.| 55| [UDMF_META_EBOOK](#udmf_meta_ebook) "general.ebook" | Generic eBook file format type.<br>This type belongs to **COMPOSITE_OBJECT**.| 56| [UDMF_META_EPUB](#udmf_meta_epub) "general.epub" | Electronic publication (EPUB).<br>This type belongs to **EBOOK**.| 57| [UDMF_META_AZW](#udmf_meta_azw) "com.amazon.azw" | AZW.<br>This type belongs to **EBOOK**.| 58| [UDMF_META_AZW3](#udmf_meta_azw3) "com.amazon.azw3" | AZW3.<br>This type belongs to **EBOOK**.| 59| [UDMF_META_KFX](#udmf_meta_kfx) "com.amazon.kfx" | KFX.<br>This type belongs to **EBOOK**.| 60| [UDMF_META_MOBI](#udmf_meta_mobi) "com.amazon.mobi" | MOBI.<br>This type belongs to **EBOOK**.| 61| [UDMF_META_MEDIA](#udmf_meta_media) "general.media" | Generic media type.<br>This type belongs to **OBJECT**.| 62| [UDMF_META_IMAGE](#udmf_meta_image) "general.image" | Image.<br>This type belongs to **MEDIA**.| 63| [UDMF_META_JPEG](#udmf_meta_jpeg) "general.jpeg" | JPEG.<br>This type belongs to **IMAGE**.| 64| [UDMF_META_PNG](#udmf_meta_png) "general.png" | PNG.<br>This type belongs to **IMAGE**.| 65| [UDMF_META_RAW_IMAGE](#udmf_meta_raw_image) "general.raw-image" | Raw image.<br>This type belongs to **IMAGE**.| 66| [UDMF_META_TIFF](#udmf_meta_tiff) "general.tiff" | TIFF.<br>This type belongs to **IMAGE**.| 67| [UDMF_META_BMP](#udmf_meta_bmp) "com.microsoft.bmp" | BMP.<br>This type belongs to **IMAGE**.| 68| [UDMF_META_ICO](#udmf_meta_ico) "com.microsoft.ico" | Windows icon.<br>This type belongs to **IMAGE**.| 69| [UDMF_META_PHOTOSHOP_IMAGE](#udmf_meta_photoshop_image) "com.adobe.photoshop-image" | Adobe Photoshop image.<br>This type belongs to **IMAGE**.| 70| [UDMF_META_AI_IMAGE](#udmf_meta_ai_image) "com.adobe.illustrator.ai-image" | Adobe Illustrator image (.ai).<br>This type belongs to **IMAGE**.| 71| [UDMF_META_WORD_DOC](#udmf_meta_word_doc) "com.microsoft.word.doc" | Microsoft Word.<br>This type belongs to **COMPOSITE_OBJECT**.| 72| [UDMF_META_EXCEL](#udmf_meta_excel) "com.microsoft.excel.xls" | Microsoft Excel.<br>This type belongs to **COMPOSITE_OBJECT**.| 73| [UDMF_META_PPT](#udmf_meta_ppt) "com.microsoft.powerpoint.ppt" | Microsoft PowerPoint presentation format.<br>This type belongs to **COMPOSITE_OBJECT**.| 74| [UDMF_META_PDF](#udmf_meta_pdf) "com.adobe.pdf" | PDF.<br>This type belongs to **COMPOSITE_OBJECT**.| 75| [UDMF_META_POSTSCRIPT](#udmf_meta_postscript) "com.adobe.postscript" | PostScript.<br>This type belongs to **COMPOSITE_OBJECT**.| 76| [UDMF_META_ENCAPSULATED_POSTSCRIPT](#udmf_meta_encapsulated_postscript) "com.adobe.encapsulated-postscript" | Encapsulated PostScript.<br>This type belongs to **POSTSCRIPT**.| 77| [UDMF_META_VIDEO](#udmf_meta_video) "general.video" | Generic video type.<br>This type belongs to **MEDIA**.| 78| [UDMF_META_AVI](#udmf_meta_avi) "general.avi" | AVI.<br>This type belongs to **VIDEO**.| 79| [UDMF_META_MPEG](#udmf_meta_mpeg) "general.mpeg" | MPGE-1 or MPGE-2.<br>This type belongs to **VIDEO**.| 80| [UDMF_META_MPEG4](#udmf_meta_mpeg4) "general.mpeg-4" | MPGE-4.<br>This type belongs to **VIDEO**.| 81| [UDMF_META_VIDEO_3GPP](#udmf_meta_video_3gpp) "general.3gpp" | 3GP (3GPP file format).<br>This type belongs to **VIDEO**.| 82| [UDMF_META_VIDEO_3GPP2](#udmf_meta_video_3gpp2) "general.3gpp2" | 3G2 (3GPP2 file format).<br>This type belongs to **VIDEO**.| 83| [UDMF_META_WINDOWS_MEDIA_WM](#udmf_meta_windows_media_wm) "com.microsoft.windows-media-wm" | Windows WM format.<br>This type belongs to **VIDEO**.| 84| [UDMF_META_WINDOWS_MEDIA_WMV](#udmf_meta_windows_media_wmv) "com.microsoft.windows-media-wmv" | Windows WMV format.<br>This type belongs to **VIDEO**.| 85| [UDMF_META_WINDOWS_MEDIA_WMP](#udmf_meta_windows_media_wmp) "com.microsoft.windows-media-wmp" | Windows WMP format.<br>This type belongs to **VIDEO**.| 86| [UDMF_META_AUDIO](#udmf_meta_audio) "general.audio" | Generic audio type.<br>This type belongs to **MEDIA**.| 87| [UDMF_META_AAC](#udmf_meta_aac) "general.aac" | AAC.<br>This type belongs to **AUDIO**.| 88| [UDMF_META_AIFF](#udmf_meta_aiff) "general.aiff" | AIFF.<br>This type belongs to **AUDIO**.| 89| [UDMF_META_ALAC](#udmf_meta_alac) "general.alac" | ALAC.<br>This type belongs to **AUDIO**.| 90| [UDMF_META_FLAC](#udmf_meta_flac) "general.flac" | FLAC.<br>This type belongs to **AUDIO**.| 91| [UDMF_META_MP3](#udmf_meta_mp3) "general.mp3" | MP3.<br>This type belongs to **AUDIO**.| 92| [UDMF_META_OGG](#udmf_meta_ogg) "general.ogg" | OGG.<br>This type belongs to **AUDIO**.| 93| [UDMF_META_PCM](#udmf_meta_pcm) "general.pcm" | PCM.<br>This type belongs to **AUDIO**.| 94| [UDMF_META_WINDOWS_MEDIA_WMA](#udmf_meta_windows_media_wma) "com.microsoft.windows-media-wma" | Windows WMA.<br>This type belongs to **AUDIO**.| 95| [UDMF_META_WAVEFORM_AUDIO](#udmf_meta_waveform_audio) "com.microsoft.waveform-audio" | Windows Waveform.<br>This type belongs to **AUDIO**.| 96| [UDMF_META_WINDOWS_MEDIA_WMX](#udmf_meta_windows_media_wmx) "com.microsoft.windows-media-wmx" | Windows WMX format.<br>This type belongs to **VIDEO**.| 97| [UDMF_META_WINDOWS_MEDIA_WVX](#udmf_meta_windows_media_wvx) "com.microsoft.windows-media-wvx" | Windows WVX format.<br>This type belongs to **VIDEO**.| 98| [UDMF_META_WINDOWS_MEDIA_WAX](#udmf_meta_windows_media_wax) "com.microsoft.windows-media-wax" | Windows WAX.<br>This type belongs to **AUDIO**.| 99| [UDMF_META_GENERAL_FILE](#udmf_meta_general_file) "general.file" | Generic file type.<br>This type belongs to **ENTITY**.| 100| [UDMF_META_DIRECTORY](#udmf_meta_directory) "general.directory" | Generic directory type.<br>This type belongs to **ENTITY**.| 101| [UDMF_META_FOLDER](#udmf_meta_folder) "general.folder" | Generic folder type.<br>This type belongs to **DIRECTORY**.| 102| [UDMF_META_SYMLINK](#udmf_meta_symlink) "general.symlink" | Generic symbolic type.<br>This type belongs to **ENTITY**.| 103| [UDMF_META_ARCHIVE](#udmf_meta_archive) "general.archive" | Generic archive file type.<br>This type belongs to **OBJECT**.| 104| [UDMF_META_BZ2_ARCHIVE](#udmf_meta_bz2_archive) "general.bz2-archive" | BZ2.<br>This type belongs to **ARCHIVE**.| 105| [UDMF_META_DISK_IMAGE](#udmf_meta_disk_image) "general.disk-image" | Generic type of any file that can be mounted as a volume.<br>This type belongs to **ARCHIVE**.| 106| [UDMF_META_TAR_ARCHIVE](#udmf_meta_tar_archive) "general.tar-archive" | TAR.<br>This type belongs to ARCHIVE.| 107| [UDMF_META_ZIP_ARCHIVE](#udmf_meta_zip_archive) "general.zip-archive" | ZIP.<br>This type belongs to **ARCHIVE**.| 108| [UDMF_META_JAVA_ARCHIVE](#udmf_meta_java_archive) "com.sun.java-archive" | JAR (Java archive).<br>This type belongs to **ARCHIVE** and **EXECUTABLE**.| 109| [UDMF_META_GNU_TAR_ARCHIVE](#udmf_meta_gnu_tar_archive) "org.gnu.gnu-tar-archive" | GUN archive.<br>This type belongs to **ARCHIVE**.| 110| [UDMF_META_GNU_ZIP_ARCHIVE](#udmf_meta_gnu_zip_archive) "org.gnu.gnu-zip-archive" | GZIP archive.<br>This type belongs to **ARCHIVE**.| 111| [UDMF_META_GNU_ZIP_TAR_ARCHIVE](#udmf_meta_gnu_zip_tar_archive) "org.gnu.gnu-zip-tar-archive" | GZIP TAR.<br>This type belongs to **ARCHIVE**.| 112| [UDMF_META_CALENDAR](#udmf_meta_calendar) "general.calendar" | Generic calendar type.<br>This type belongs to **OBJECT**.| 113| [UDMF_META_CONTACT](#udmf_meta_contact) "general.contact" | Generic contact type.<br>This type belongs to **OBJECT**.| 114| [UDMF_META_DATABASE](#udmf_meta_database) "general.database" | Generic database file type.<br>This type belongs to **OBJECT**.| 115| [UDMF_META_MESSAGE](#udmf_meta_message) "general.message" | Generic message type.<br>This type belongs to **OBJECT**.| 116| [UDMF_META_VCARD](#udmf_meta_vcard) "general.vcard" | Generic electronic business card type.<br>This type belongs to **OBJECT**.| 117| [UDMF_META_NAVIGATION](#udmf_meta_navigation) "general.navigation" | Generic navigation data type.<br>This type belongs to **OBJECT**.| 118| [UDMF_META_LOCATION](#udmf_meta_location) "general.location" | Location data.<br>This type belongs to **NAVIGATION**.| 119| [UDMF_META_OPENHARMONY_FORM](#udmf_meta_openharmony_form) "openharmony.form" | Widget defined for the system.<br>This type belongs to **OBJECT**.| 120| [UDMF_META_OPENHARMONY_APP_ITEM](#udmf_meta_openharmony_app_item) "openharmony.app-item" | Home screen icon defined for the system.<br>This type belongs to **OBJECT**.| 121| [UDMF_META_OPENHARMONY_PIXEL_MAP](#udmf_meta_openharmony_pixel_map) "openharmony.pixel-map" | Pixel map defined for the system.<br>This type belongs to **IMAGE**.| 122| [UDMF_META_OPENHARMONY_ATOMIC_SERVICE](#udmf_meta_openharmony_atomic_service) "openharmony.atomic-service" | Atomic service type defined for the system.<br>This type belongs to **OBJECT**.| 123| [UDMF_META_OPENHARMONY_PACKAGE](#udmf_meta_openharmony_package) "openharmony.package" | Package (compressed folder) defined for the system.<br>This type belongs to **DIRECTORY**.| 124| [UDMF_META_OPENHARMONY_HAP](#udmf_meta_openharmony_hap) "openharmony.hap" | Ability package defined for the system.<br>This type belongs to **OPENHARMONY_PACKAGE**.| 125| [UDMF_META_SMIL](#udmf_meta_smil) "com.real.smil" | Synchronized Multimedia Integration Language (SMIL).<br>This type belongs to **XML**.| 126| [UDMF_META_MARKDOWN](#udmf_meta_markdown) "general.markdown" | Markdown.<br>This type belongs to **PLAIN_TEXT**.| 127| [UDMF_META_FAX](#udmf_meta_fax) "general.fax" | Generic type of the fax.<br>This type belongs to **IMAGE**.| 128| [UDMF_META_JFX_FAX](#udmf_meta_jfx_fax) "com.j2.jfx-fax" | J2 jConnect fax file format.<br>This type belongs to **FAX**.| 129| [UDMF_META_EFX_FAX](#udmf_meta_efx_fax) "com.js.efx-fax" | EFX file format.<br>This type belongs to **FAX**.| 130| [UDMF_META_XBITMAP_IMAGE](#udmf_meta_xbitmap_image) "general.xbitmap-image" | X BitMAP (XBM) used in the X Window system (X11).<br>This type belongs to **IMAGE**.| 131| [UDMF_META_TGA_IMAGE](#udmf_meta_tga_image) "com.truevision.tga-image" | Tagged Graphics (TGA) format.<br>This type belongs to **IMAGE**.| 132| [UDMF_META_SGI_IMAGE](#udmf_meta_sgi_image) "com.sgi.sgi-image" | Silicon Graphics image (SGI) format.<br>This type belongs to **IMAGE**.| 133| [UDMF_META_OPENEXR_IMAGE](#udmf_meta_openexr_image) "com.ilm.openexr-image" | OpenXR image format.<br>This type belongs to **IMAGE**.| 134| [UDMF_META_FLASHPIX_IMAGE](#udmf_meta_flashpix_image) "com.kodak.flashpix.image" | FlashPix image format.<br>This type belongs to **IMAGE**.| 135| [UDMF_META_REALMEDIA](#udmf_meta_realmedia) "com.real.realmedia" | RealMedia format.<br>This type belongs to **VIDEO**.| 136| [UDMF_META_AU_AUDIO](#udmf_meta_au_audio) "general.au-audio" | AU format.<br>This type belongs to **AUDIO**.| 137| [UDMF_META_AIFC_AUDIO](#udmf_meta_aifc_audio) "general.aifc-audio" | AIFC.<br>This type belongs to **AUDIO**.| 138| [UDMF_META_SD2_AUDIO](#udmf_meta_sd2_audio) "com.digidesign.sd2-audio" | Digidesign Sound Designer II (SDII).<br>This type belongs to **AUDIO**.| 139| [UDMF_META_REALAUDIO](#udmf_meta_realaudio) "com.real.realaudio" | RealAudio.<br>This type belongs to **AUDIO**.| 140| [UDMF_META_OPENXML](#udmf_meta_openxml) "org.openxmlformats.openxml" | OpenXML base type.<br>This type belongs to **ARCHIVE**.| 141| [UDMF_META_WORDPROCESSINGML_DOCUMENT](#udmf_meta_wordprocessingml_document) "org.openxmlformats.wordprocessingml.document" | WordProcessingML format.<br>This type belongs to **OPENXML** and **COMPOSITE_OBJECT**.| 142| [UDMF_META_SPREADSHEETML_SHEET](#udmf_meta_spreadsheetml_sheet) "org.openxmlformats.spreadsheetml.sheet" | SpreadsheetML format.<br>This type belongs to **OPENXML** and **COMPOSITE_OBJECT**.| 143| [UDMF_META_PRESENTATIONML_PRESENTATION](#udmf_meta_presentationml_presentation) "org.openxmlformats.presentationml.presentation" | PresentationML format.<br>This type belongs to **OPENXML** and **COMPOSITE_OBJECT**.| 144| [UDMF_META_OPENDOCUMENT](#udmf_meta_opendocument) "org.oasis.opendocument" | OpenDocument format for Office applications.<br>This type belongs to **ARCHIVE**.| 145| [UDMF_META_OPENDOCUMENT_TEXT](#udmf_meta_opendocument_text) "org.oasis.opendocument.text" | OpenDocument format for word processing (text) documents.<br>This type belongs to **OPENDOCUMENT** and **COMPOSITE_OBJECT**.| 146| [UDMF_META_OPENDOCUMENT_SPREADSHEET](#udmf_meta_opendocument_spreadsheet) "org.oasis.opendocument.spreadsheet" | OpenDocument format for spreadsheets.<br>This type belongs to **OPENDOCUMENT** and **COMPOSITE_OBJECT**.| 147| [UDMF_META_OPENDOCUMENT_PRESENTATION](#udmf_meta_opendocument_presentation) "org.oasis.opendocument.presentation" | OpenDocument format for presentations.<br>This type belongs to **OPENDOCUMENT** and **COMPOSITE_OBJECT**.| 148| [UDMF_META_OPENDOCUMENT_GRAPHICS](#udmf_meta_opendocument_graphics) "org.oasis.opendocument.graphics" | OpenDocument format for graphics.<br>This type belongs to **OPENDOCUMENT** and **COMPOSITE_OBJECT**.| 149| [UDMF_META_OPENDOCUMENT_FORMULA](#udmf_meta_opendocument_formula) "org.oasis.opendocument.formula" | OpenDocument format for formula.<br>This type belongs to **OPENDOCUMENT**.| 150| [UDMF_META_STUFFIT_ARCHIVE](#udmf_meta_stuffit_archive) "com.allume.stuffit-archive" | Stuffit compression format (stuffit archive).<br>This type belongs to **ARCHIVE**.| 151| [UDMF_META_VCS](#udmf_meta_vcs) "general.vcs" | VCalendar (VCS) format.<br>This type belongs to **CALENDAR** and **TEXT**.| 152| [UDMF_META_ICS](#udmf_meta_ics) "general.ics" | Internet Calendaring and Scheduling (ICS) format.<br>This type belongs to **CALENDAR** and **TEXT**.| 153| [UDMF_META_EXECUTABLE](#udmf_meta_executable) "general.executable" | Generic type of all executable files.<br>This type belongs to **OBJECT**.| 154| [UDMF_META_PORTABLE_EXECUTABLE](#udmf_meta_portable_executable) "com.microsoft.portable-executable" | Microsoft Windows portable executable format.<br>This type belongs to **EXECUTABLE**.| 155| [UDMF_META_SUN_JAVA_CLASS](#udmf_meta_sun_java_class) "com.sun.java-class" | Java class file format.<br>This type belongs to **EXECUTABLE**.| 156| [UDMF_META_FONT](#udmf_meta_font) "general.font" | Basic type of fonts.<br>This type belongs to **OBJECT**.| 157| [UDMF_META_TRUETYPE_FONT](#udmf_meta_truetype_font) "general.truetype-font" | TrueType font format.<br>This type belongs to **FONT**.| 158| [UDMF_META_TRUETYPE_COLLECTION_FONT](#udmf_meta_truetype_collection_font) "general.truetype-collection-font" | TrueType Collection font format.<br>This type belongs to **FONT**.| 159| [UDMF_META_OPENTYPE_FONT](#udmf_meta_opentype_font) "general.opentype-font" | OpenType font format.<br>This type belongs to **FONT**.| 160| [UDMF_META_POSTSCRIPT_FONT](#udmf_meta_postscript_font) "com.adobe.postscript-font" | PostScript font format.<br>This type belongs to **FONT**.| 161| [UDMF_META_POSTSCRIPT_PFB_FONT](#udmf_meta_postscript_pfb_font) "com.adobe.postscript-pfb-font" | PostScript Font Binary font format.<br>This type belongs to **FONT**.| 162| [UDMF_META_POSTSCRIPT_PFA_FONT](#udmf_meta_postscript_pfa_font) "com.adobe.postscript-pfa-font" | Adobe Type 1 font format.<br>This type belongs to **FONT**.| 163| [UDMF_META_OPENHARMONY_HDOC](#udmf_meta_openharmony_hdoc) "openharmony.hdoc" | Memo format defined for the system.<br>This type belongs to **COMPOSITE_OBJECT**.| 164| [UDMF_META_OPENHARMONY_HINOTE](#udmf_meta_openharmony_hinote) "openharmony.hinote" | Note format defined for the system.<br>This type belongs to **COMPOSITE_OBJECT**.| 165| [UDMF_META_OPENHARMONY_STYLED_STRING](#udmf_meta_openharmony_styled_string) "openharmony.styled-string" | Style string type defined for the system.<br>This type belongs to **COMPOSITE_OBJECT**.| 166| [UDMF_META_OPENHARMONY_WANT](#udmf_meta_openharmony_want) "openharmony.want" | Want defined for the system.<br>This type belongs to **OBJECT**.| 167| [UDMF_META_GENERAL_FILE_URI](#udmf_meta_general_file_uri) "general.file-uri" | File address type.<br>This type belongs to **TEXT**.| 168| [UDMF_METE_GENERAL_CONTENT_FORM](#udmf_mete_general_content_form) "general.content-form" | Content widget type.<br>This type belongs to **OBJECT**.| 169 170### Types 171 172| Name| Description| 173| -------- | -------- | 174| typedef enum [Udmf_Intention](#udmf_intention) [Udmf_Intention](#udmf_intention) | Defines an enum for UDMF data channels.| 175| typedef enum [Udmf_ShareOption](#udmf_shareoption) [Udmf_ShareOption](#udmf_shareoption) | Defines an enum for the scopes of the uniform data to be used on a device.| 176| typedef struct [OH_UdmfData](#oh_udmfdata) [OH_UdmfData](#oh_udmfdata) | Defines a struct for a uniform data object.| 177| typedef struct [OH_UdmfRecord](#oh_udmfrecord) [OH_UdmfRecord](#oh_udmfrecord) | Defines a struct for a data record in a uniform data object.| 178| typedef struct [OH_UdmfRecordProvider](#oh_udmfrecordprovider) [OH_UdmfRecordProvider](#oh_udmfrecordprovider) | Defines a struct for the data record provider in a uniform data object.| 179| typedef struct [OH_UdmfProperty](#oh_udmfproperty) [OH_UdmfProperty](#oh_udmfproperty) | Defines a struct for a data record property in a uniform data object.| 180| typedef void(\* [UdmfData_Finalize](#udmfdata_finalize)) (void \*context) | Defines a callback function used to release the context. This callback is invoked when the **OH_UdmfRecordProvider** instance is destroyed.| 181| typedef void \*(\* [OH_UdmfRecordProvider_GetData](#oh_udmfrecordprovider_getdata)) (void \*context, const char \*type) | Defines a callback function used to obtain data by type. This callback will be invoked to return the data obtained from **OH_UdmfRecord**.| 182| typedef enum [Udmf_ErrCode](#udmf_errcode) [Udmf_ErrCode](#udmf_errcode) | Defines an enum for error codes.| 183| typedef struct [OH_UdsPlainText](#oh_udsplaintext) [OH_UdsPlainText](#oh_udsplaintext) | Defines a struct for the uniform data of the plain text type.| 184| typedef struct [OH_UdsHyperlink](#oh_udshyperlink) [OH_UdsHyperlink](#oh_udshyperlink) | Defines a struct for the uniform data of the hyperlink type.| 185| typedef struct [OH_UdsHtml](#oh_udshtml) [OH_UdsHtml](#oh_udshtml) | Defines a struct for the uniform data of the Hypertext Markup Language (HTML) type.| 186| typedef struct [OH_UdsAppItem](#oh_udsappitem) [OH_UdsAppItem](#oh_udsappitem) | Defines a struct for the uniform data of the home screen icon type.| 187| typedef struct [OH_UdsFileUri](#oh_udsfileuri) [OH_UdsFileUri](#oh_udsfileuri) | Defines a struct for the file URI type.| 188| typedef struct [OH_UdsPixelMap](#oh_udspixelmap) [OH_UdsPixelMap](#oh_udspixelmap) | Defines a struct for the pixel map type.| 189| typedef struct [OH_UdsArrayBuffer](#oh_udsarraybuffer) [OH_UdsArrayBuffer](#oh_udsarraybuffer) | Defines a struct for the ArrayBuffer type.| 190| typedef struct [OH_Utd](#oh_utd) [OH_Utd](#oh_utd) | Defines a struct for a Uniform Type Descriptor (UTD).| 191| typedef struct [OH_UdsContentForm](#oh_udscontentform) [OH_UdsContentForm](#oh_udscontentform) | Defines a struct for the uniform data of the content widget type.| 192| typedef enum [Udmf_ListenerStatus](#udmf_listenerstatus) [Udmf_ListenerStatus](#udmf_listenerstatus) | Defines an enum for the status codes returned when data is obtained asynchronously.| 193| typedef enum [Udmf_FileConflictOptions](#udmf_fileconflictoptions) [Udmf_FileConflictOptions](#udmf_fileconflictoptions) | Defines an enum for the options used to resolve file copy conflicts.| 194| typedef enum [Udmf_ProgressIndicator](#udmf_progressindicator) [Udmf_ProgressIndicator](#udmf_progressindicator) | Defines an enum for the progress indicator options.| 195| typedef struct [OH_Udmf_ProgressInfo](#oh_udmf_progressinfo) [OH_Udmf_ProgressInfo](#oh_udmf_progressinfo) | Defines a struct for progress information.| 196| typedef struct [OH_UdmfGetDataParams](#oh_udmfgetdataparams) [OH_UdmfGetDataParams](#oh_udmfgetdataparams) | Defines a struct for parameters used to obtain UDMF data asynchronously.| 197| typedef void(\* [OH_Udmf_DataProgressListener](#oh_udmf_dataprogresslistener)) ([OH_Udmf_ProgressInfo](#oh_udmf_progressinfo) \*progressInfo, [OH_UdmfData](#oh_udmfdata) \*data) | Defines the callback used to return the data retrieval progress information and data obtained.<br>A null pointer is returned if the progress is not 100. The data obtained is returned only when the progress reaches 100.| 198 199### Enums 200 201| Name| Description| 202| -------- | -------- | 203| [Udmf_Intention](#udmf_intention) { UDMF_INTENTION_DRAG, UDMF_INTENTION_PASTEBOARD } | Enumerates the UDMF data channel types. | 204| [Udmf_ShareOption](#udmf_shareoption-1) { SHARE_OPTIONS_INVALID, SHARE_OPTIONS_IN_APP, SHARE_OPTIONS_CROSS_APP } | Enumerates the scopes of the uniform data to be used on a device. | 205| [Udmf_ErrCode](#udmf_errcode-1) { UDMF_E_OK = 0, UDMF_ERR = 20400000, UDMF_E_INVALID_PARAM = (UDMF_ERR + 1) } | Enumerates the error codes.| 206| [Udmf_ListenerStatus](#udmf_listenerstatus-1) {<br>UDMF_FINISHED = 0, UDMF_PROCESSING, UDMF_CANCELED, UDMF_INNER_ERROR = 200,<br>UDMF_INVALID_PARAMETERS, UDMF_DATA_NOT_FOUND, UDMF_SYNC_FAILED, UDMF_COPY_FILE_FAILED<br>} | Enumerates the status codes returned when data is obtained asynchronously.| 207| [Udmf_FileConflictOptions](#udmf_fileconflictoptions-1) { UDMF_OVERWRITE = 0, UDMF_SKIP = 1 } | Enumerates the options used to resolve file copy conflicts.| 208| [Udmf_ProgressIndicator](#udmf_progressindicator-1) { UDMF_NONE = 0, UDMF_DEFAULT = 1 } | Enumerates the progress indicator options.| 209 210 211### Functions 212 213| Name| Description| 214| -------- | -------- | 215| int [OH_UdmfProgressInfo_GetProgress](#oh_udmfprogressinfo_getprogress) ([OH_Udmf_ProgressInfo](#oh_udmf_progressinfo) \*progressInfo) | Obtains the progress information from [OH_Udmf_ProgressInfo](#oh_udmf_progressinfo).| 216| int [OH_UdmfProgressInfo_GetStatus](#oh_udmfprogressinfo_getstatus) ([OH_Udmf_ProgressInfo](#oh_udmf_progressinfo) \*progressInfo) | Obtains the status information from [OH_Udmf_ProgressInfo](#oh_udmf_progressinfo).| 217| [OH_UdmfGetDataParams](#oh_udmfgetdataparams) \* [OH_UdmfGetDataParams_Create](#oh_udmfgetdataparams_create) () | Creates an [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance for asynchronously obtaining UDMF data.<br>If this pointer is no longer required, use [OH_UdmfGetDataParams_Destroy](#oh_udmfgetdataparams_destroy) to destroy it. Otherwise, memory leaks may occur.| 218| void [OH_UdmfGetDataParams_Destroy](#oh_udmfgetdataparams_destroy) ([OH_UdmfGetDataParams](#oh_udmfgetdataparams) \*pThis) | Destroys an [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance.| 219| void [OH_UdmfGetDataParams_SetDestUri](#oh_udmfgetdataparams_setdesturi) ([OH_UdmfGetDataParams](#oh_udmfgetdataparams) \*params, const char \*destUri) | Sets the destination directory in an [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance.<br>If the destination directory is set, data of the file type will be copied to the specified directory. The file type data obtained in the callback will be replaced with the URI of the destination directory.<br>If the destination directory is not specified, the file will not be copied. The file type data obtained in the callback is the URI of the source directory.<br>If the application involves complex file processing or files need to be copied to multiple directories, you are advised to leave this parameter unspecified and let the application to handle the file copy.| 220| void [OH_UdmfGetDataParams_SetFileConflictOptions](#oh_udmfgetdataparams_setfileconflictoptions) ([OH_UdmfGetDataParams](#oh_udmfgetdataparams) \*params, const [Udmf_FileConflictOptions](#udmf_fileconflictoptions) options) | Sets the policy for resolving file conflicts in an [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance.| 221| void [OH_UdmfGetDataParams_SetProgressIndicator](#oh_udmfgetdataparams_setprogressindicator) ([OH_UdmfGetDataParams](#oh_udmfgetdataparams) \*params, const [Udmf_ProgressIndicator](#udmf_progressindicator) progressIndicator) | Sets the progress indicator in an [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance.| 222| void [OH_UdmfGetDataParams_SetDataProgressListener](#oh_udmfgetdataparams_setdataprogresslistener) ([OH_UdmfGetDataParams](#oh_udmfgetdataparams) \*params, const [OH_Udmf_DataProgressListener](#oh_udmf_dataprogresslistener) dataProgressListener) | Sets the callback used to return the data obtained in an [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance.| 223| int [OH_UdmfRecord_AddContentForm](#oh_udmfrecord_addcontentform) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsContentForm](#oh_udscontentform) \*contentForm) | Adds data of the [OH_UdsContentForm](#oh_udscontentform) type to an [OH_UdmfRecord](#oh_udmfrecord) instance.| 224| int [OH_UdmfRecord_GetContentForm](#oh_udmfrecord_getcontentform) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsContentForm](#oh_udscontentform) \*contentForm) | Obtains data of the [OH_UdsContentForm](#oh_udscontentform) type from an [OH_UdmfRecord](#oh_udmfrecord) instance.| 225| [OH_UdsContentForm](#oh_udscontentform) \* [OH_UdsContentForm_Create](#oh_udscontentform_create) () | Creates an [OH_UdsContentForm](#oh_udscontentform) instance and a pointer to it.| 226| void [OH_UdsContentForm_Destroy](#oh_udscontentform_destroy) ([OH_UdsContentForm](#oh_udscontentform) \*pThis) | Destroys an [OH_UdsContentForm](#oh_udscontentform) instance.| 227| const char \* [OH_UdsContentForm_GetType](#oh_udscontentform_gettype) ([OH_UdsContentForm](#oh_udscontentform) \*pThis) | Obtains the type ID from an [OH_UdsContentForm](#oh_udscontentform) instance.| 228| int [OH_UdsContentForm_GetThumbData](#oh_udscontentform_getthumbdata) ([OH_UdsContentForm](#oh_udscontentform) \*pThis, unsigned char \*\*thumbData, unsigned int \*len) | Obtains image data from an [OH_UdsContentForm](#oh_udscontentform) instance.| 229| const char \* [OH_UdsContentForm_GetDescription](#oh_udscontentform_getdescription) ([OH_UdsContentForm](#oh_udscontentform) \*pThis) | Obtains the description from an [OH_UdsContentForm](#oh_udscontentform) instance.| 230| const char \* [OH_UdsContentForm_GetTitle](#oh_udscontentform_gettitle) ([OH_UdsContentForm](#oh_udscontentform) \*pThis) | Obtains the title from an [OH_UdsContentForm](#oh_udscontentform) instance.| 231| int [OH_UdsContentForm_GetAppIcon](#oh_udscontentform_getappicon) ([OH_UdsContentForm](#oh_udscontentform) \*pThis, unsigned char \*\*appIcon, unsigned int \*len) | Obtains the application icon data from an [OH_UdsContentForm](#oh_udscontentform) instance.| 232| const char \* [OH_UdsContentForm_GetAppName](#oh_udscontentform_getappname) ([OH_UdsContentForm](#oh_udscontentform) \*pThis) | Obtains the application name from an [OH_UdsContentForm](#oh_udscontentform) instance.| 233| const char \* [OH_UdsContentForm_GetLinkUri](#oh_udscontentform_getlinkuri) ([OH_UdsContentForm](#oh_udscontentform) \*pThis) | Obtains the hyperlink information from an [OH_UdsContentForm](#oh_udscontentform) instance.| 234| int [OH_UdsContentForm_SetThumbData](#oh_udscontentform_setthumbdata) ([OH_UdsContentForm](#oh_udscontentform) \*pThis, const unsigned char \*thumbData, unsigned int len) | Sets the image data for an [OH_UdsContentForm](#oh_udscontentform) instance.| 235| int [OH_UdsContentForm_SetDescription](#oh_udscontentform_setdescription) ([OH_UdsContentForm](#oh_udscontentform) \*pThis, const char \*description) | Sets the description for an [OH_UdsContentForm](#oh_udscontentform) instance.| 236| int [OH_UdsContentForm_SetTitle](#oh_udscontentform_settitle) ([OH_UdsContentForm](#oh_udscontentform) \*pThis, const char \*title) | Sets the title for an [OH_UdsContentForm](#oh_udscontentform) instance.| 237| int [OH_UdsContentForm_SetAppIcon](#oh_udscontentform_setappicon) ([OH_UdsContentForm](#oh_udscontentform) \*pThis, const unsigned char \*appIcon, unsigned int len) | Sets the application icon data for an [OH_UdsContentForm](#oh_udscontentform) instance.| 238| int [OH_UdsContentForm_SetAppName](#oh_udscontentform_setappname) ([OH_UdsContentForm](#oh_udscontentform) \*pThis, const char \*appName) | Sets the application name for an [OH_UdsContentForm](#oh_udscontentform) instance.| 239| int [OH_UdsContentForm_SetLinkUri](#oh_udscontentform_setlinkuri) ([OH_UdsContentForm](#oh_udscontentform) \*pThis, const char \*linkUri) | Sets the hyperlink data for an [OH_UdsContentForm](#oh_udscontentform) instance.| 240| [OH_UdmfData](#oh_udmfdata) \* [OH_UdmfData_Create](#oh_udmfdata_create) () | Creates an [OH_UdmfData](#oh_udmfdata) instance and a pointer to it. If this pointer is no longer required, use [OH_UdmfData_Destroy](#oh_udmfdata_destroy) to destroy it. Otherwise, memory leaks may occur.| 241| void [OH_UdmfData_Destroy](#oh_udmfdata_destroy) ([OH_UdmfData](#oh_udmfdata) \*pThis) | Destroys an [OH_UdmfData](#oh_udmfdata) instance.| 242| int [OH_UdmfData_AddRecord](#oh_udmfdata_addrecord) ([OH_UdmfData](#oh_udmfdata) \*pThis, [OH_UdmfRecord](#oh_udmfrecord) \*record) | Adds an [OH_UdmfRecord](#oh_udmfrecord) to an [OH_UdmfData](#oh_udmfdata) instance.| 243| bool [OH_UdmfData_HasType](#oh_udmfdata_hastype) ([OH_UdmfData](#oh_udmfdata) \*pThis, const char \*type) | Checks whether the specified type exists in an [OH_UdmfData](#oh_udmfdata) instance.| 244| char \*\* [OH_UdmfData_GetTypes](#oh_udmfdata_gettypes) ([OH_UdmfData](#oh_udmfdata) \*pThis, unsigned int \*count) | Obtains all data types in an [OH_UdmfData](#oh_udmfdata) instance.| 245| [OH_UdmfRecord](#oh_udmfrecord) \*\* [OH_UdmfData_GetRecords](#oh_udmfdata_getrecords) ([OH_UdmfData](#oh_udmfdata) \*pThis, unsigned int \*count) | Obtains all records contained in an [OH_UdmfData](#oh_udmfdata) instance.| 246| [OH_UdmfRecordProvider](#oh_udmfrecordprovider) \* [OH_UdmfRecordProvider_Create](#oh_udmfrecordprovider_create) () | Creates an [OH_UdmfRecordProvider](#oh_udmfrecordprovider) instance and a pointer to it. If this pointer is no longer required, use [OH_UdmfRecordProvider_Destroy](#oh_udmfrecordprovider_destroy) to destroy it. Otherwise, memory leaks may occur.| 247| int [OH_UdmfRecordProvider_Destroy](#oh_udmfrecordprovider_destroy) ([OH_UdmfRecordProvider](#oh_udmfrecordprovider) \*provider) | Destroys an [OH_UdmfRecordProvider](#oh_udmfrecordprovider) instance.| 248| int [OH_UdmfRecordProvider_SetData](#oh_udmfrecordprovider_setdata) ([OH_UdmfRecordProvider](#oh_udmfrecordprovider) \*provider, void \*context, const [OH_UdmfRecordProvider_GetData](#oh_udmfrecordprovider_getdata) callback, const [UdmfData_Finalize](#udmfdata_finalize) finalize) | Sets a callback for an **OH_UdmfRecordProvider** instance to provide data.| 249| [OH_UdmfRecord](#oh_udmfrecord) \* [OH_UdmfRecord_Create](#oh_udmfrecord_create) () | Creates an [OH_UdmfRecord](#oh_udmfrecord) instance and a pointer to it. If this pointer is no longer required, use [OH_UdmfRecord_Destroy](#oh_udmfrecord_destroy) to destroy it. Otherwise, memory leaks may occur.| 250| void [OH_UdmfRecord_Destroy](#oh_udmfrecord_destroy) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis) | Destroys an [OH_UdmfRecord](#oh_udmfrecord) instance.| 251| int [OH_UdmfRecord_AddGeneralEntry](#oh_udmfrecord_addgeneralentry) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, const char \*typeId, unsigned char \*entry, unsigned int count) | Adds customized uniform data to an [OH_UdmfRecord](#oh_udmfrecord) instance.| 252| int [OH_UdmfRecord_AddPlainText](#oh_udmfrecord_addplaintext) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsPlainText](#oh_udsplaintext) \*plainText) | Adds data of the [OH_UdsPlainText](#oh_udsplaintext) type to an [OH_UdmfRecord](#oh_udmfrecord) instance.| 253| int [OH_UdmfRecord_AddHyperlink](#oh_udmfrecord_addhyperlink) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsHyperlink](#oh_udshyperlink) \*hyperlink) | Adds data of the hyperlink type [OH_UdsHyperlink](#oh_udshyperlink) type to an [OH_UdmfRecord](#oh_udmfrecord) instance.| 254| int [OH_UdmfRecord_AddHtml](#oh_udmfrecord_addhtml) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsHtml](#oh_udshtml) \*html) | Adds data of the [OH_UdsHtml](#oh_udshtml) type to an [OH_UdmfRecord](#oh_udmfrecord) instance.| 255| int [OH_UdmfRecord_AddAppItem](#oh_udmfrecord_addappitem) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsAppItem](#oh_udsappitem) \*appItem) | Adds data of the [OH_UdsAppItem](#oh_udsappitem) type to an [OH_UdmfRecord](#oh_udmfrecord) instance.| 256| int [OH_UdmfRecord_AddFileUri](#oh_udmfrecord_addfileuri) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsFileUri](#oh_udsfileuri) \*fileUri) | Adds a data record of the [OH_UdsFileUri](#oh_udsfileuri) type to an [OH_UdmfRecord](#oh_udmfrecord) instance.| 257| int [OH_UdmfRecord_AddPixelMap](#oh_udmfrecord_addpixelmap) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsPixelMap](#oh_udspixelmap) \*pixelMap) | Adds a data record of the [OH_UdsPixelMap](#oh_udspixelmap) type to an [OH_UdmfRecord](#oh_udmfrecord) instance.| 258| int [OH_UdmfRecord_AddArrayBuffer](#oh_udmfrecord_addarraybuffer) ([OH_UdmfRecord](#oh_udmfrecord) \*record, const char \*type, [OH_UdsArrayBuffer](#oh_udsarraybuffer) \*buffer) | Adds a data record of the [OH_UdsArrayBuffer](#oh_udsarraybuffer) type to an [OH_UdmfRecord](#oh_udmfrecord) instance.| 259| char \*\* [OH_UdmfRecord_GetTypes](#oh_udmfrecord_gettypes) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, unsigned int \*count) | Obtains all data types in an [OH_UdmfRecord](#oh_udmfrecord) instance.| 260| int [OH_UdmfRecord_GetGeneralEntry](#oh_udmfrecord_getgeneralentry) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, const char \*typeId, unsigned char \*\*entry, unsigned int \*count) | Obtains the data of the specified type in an [OH_UdmfRecord](#oh_udmfrecord) instance.| 261| int [OH_UdmfRecord_GetPlainText](#oh_udmfrecord_getplaintext) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsPlainText](#oh_udsplaintext) \*plainText) | Obtains [OH_UdsPlainText](#oh_udsplaintext) data from an [OH_UdmfRecord](#oh_udmfrecord) instance.| 262| int [OH_UdmfRecord_GetHyperlink](#oh_udmfrecord_gethyperlink) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsHyperlink](#oh_udshyperlink) \*hyperlink) | Obtains [OH_UdsHyperlink](#oh_udshyperlink) data from an [OH_UdmfRecord](#oh_udmfrecord) instance.| 263| int [OH_UdmfRecord_GetHtml](#oh_udmfrecord_gethtml) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsHtml](#oh_udshtml) \*html) | Obtains [OH_UdsHtml](#oh_udshtml) data from an [OH_UdmfRecord](#oh_udmfrecord) instance.| 264| int [OH_UdmfRecord_GetAppItem](#oh_udmfrecord_getappitem) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsAppItem](#oh_udsappitem) \*appItem) | Obtains [OH_UdsAppItem](#oh_udsappitem) data from an [OH_UdmfRecord](#oh_udmfrecord) instance.| 265| int [OH_UdmfRecord_SetProvider](#oh_udmfrecord_setprovider) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, const char \*const \*types, unsigned int count, [OH_UdmfRecordProvider](#oh_udmfrecordprovider) \*provider) | Sets the [OH_UdmfRecordProvider](#oh_udmfrecordprovider) in an [OH_UdmfRecord](#oh_udmfrecord) instance.| 266| int [OH_UdmfRecord_GetFileUri](#oh_udmfrecord_getfileuri) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsFileUri](#oh_udsfileuri) \*fileUri) | Obtains the [OH_UdsFileUri](#oh_udsfileuri) data from an [OH_UdmfRecord](#oh_udmfrecord) instance.| 267| int [OH_UdmfRecord_GetPixelMap](#oh_udmfrecord_getpixelmap) ([OH_UdmfRecord](#oh_udmfrecord) \*pThis, [OH_UdsPixelMap](#oh_udspixelmap) \*pixelMap) | Obtains the [OH_UdsPixelMap](#oh_udspixelmap) data from an [OH_UdmfRecord](#oh_udmfrecord) instance.| 268| int [OH_UdmfRecord_GetArrayBuffer](#oh_udmfrecord_getarraybuffer) ([OH_UdmfRecord](#oh_udmfrecord) \*record, const char \*type, [OH_UdsArrayBuffer](#oh_udsarraybuffer) \*buffer) | Obtains the [OH_UdsArrayBuffer](#oh_udsarraybuffer) data from an [OH_UdmfRecord](#oh_udmfrecord) instance.| 269| int [OH_UdmfData_GetPrimaryPlainText](#oh_udmfdata_getprimaryplaintext) ([OH_UdmfData](#oh_udmfdata) \*data, [OH_UdsPlainText](#oh_udsplaintext) \*plainText) | Obtains the first [OH_UdsPlainText](#oh_udsplaintext) data from an [OH_UdmfData](#oh_udmfdata) instance.| 270| int [OH_UdmfData_GetPrimaryHtml](#oh_udmfdata_getprimaryhtml) ([OH_UdmfData](#oh_udmfdata) \*data, [OH_UdsHtml](#oh_udshtml) \*html) | Obtains the first [OH_UdsHtml](#oh_udshtml) data from an [OH_UdmfData](#oh_udmfdata) instance.| 271| int [OH_UdmfData_GetRecordCount](#oh_udmfdata_getrecordcount) ([OH_UdmfData](#oh_udmfdata) \*data) | Obtains the number of data records contained in an [OH_UdmfData](#oh_udmfdata) instance.| 272| [OH_UdmfRecord](#oh_udmfrecord) \* [OH_UdmfData_GetRecord](#oh_udmfdata_getrecord) ([OH_UdmfData](#oh_udmfdata) \*data, unsigned int index) | Obtains the specified data record from an [OH_UdmfData](#oh_udmfdata) instance.| 273| bool [OH_UdmfData_IsLocal](#oh_udmfdata_islocal) ([OH_UdmfData](#oh_udmfdata) \*data) | Checks whether an [OH_UdmfData](#oh_udmfdata) instance is from the local device.| 274| [OH_UdmfProperty](#oh_udmfproperty) \* [OH_UdmfProperty_Create](#oh_udmfproperty_create) ([OH_UdmfData](#oh_udmfdata) \*unifiedData) | Creates an [OH_UdmfProperty](#oh_udmfproperty) instance and a pointer to it. If this pointer is no longer required, use [OH_UdmfProperty_Destroy](#oh_udmfproperty_destroy) to destroy it. Otherwise, memory leaks may occur.| 275| void [OH_UdmfProperty_Destroy](#oh_udmfproperty_destroy) ([OH_UdmfProperty](#oh_udmfproperty) \*pThis) | Destroys an [OH_UdmfProperty](#oh_udmfproperty) instance.| 276| const char \* [OH_UdmfProperty_GetTag](#oh_udmfproperty_gettag) ([OH_UdmfProperty](#oh_udmfproperty) \*pThis) | Obtains the custom tag value from an [OH_UdmfProperty](#oh_udmfproperty) instance.| 277| int64_t [OH_UdmfProperty_GetTimestamp](#oh_udmfproperty_gettimestamp) ([OH_UdmfProperty](#oh_udmfproperty) \*pThis) | Obtains the timestamp from an [OH_UdmfProperty](#oh_udmfproperty) instance.| 278| [Udmf_ShareOption](#udmf_shareoption) [OH_UdmfProperty_GetShareOption](#oh_udmfproperty_getshareoption) ([OH_UdmfProperty](#oh_udmfproperty) \*pThis) | Obtains the share option from an [OH_UdmfProperty](#oh_udmfproperty) instance.| 279| int [OH_UdmfProperty_GetExtrasIntParam](#oh_udmfproperty_getextrasintparam) ([OH_UdmfProperty](#oh_udmfproperty) \*pThis, const char \*key, int defaultValue) | Obtains the customized extra integer parameter from an [OH_UdmfProperty](#oh_udmfproperty) instance.| 280| const char \* [OH_UdmfProperty_GetExtrasStringParam](#oh_udmfproperty_getextrasstringparam) ([OH_UdmfProperty](#oh_udmfproperty) \*pThis, const char \*key) | Obtains the customized extra string parameter from an [OH_UdmfProperty](#oh_udmfproperty) instance.| 281| int [OH_UdmfProperty_SetTag](#oh_udmfproperty_settag) ([OH_UdmfProperty](#oh_udmfproperty) \*pThis, const char \*tag) | Sets the tag value for an [OH_UdmfProperty](#oh_udmfproperty) instance.| 282| int [OH_UdmfProperty_SetShareOption](#oh_udmfproperty_setshareoption) ([OH_UdmfProperty](#oh_udmfproperty) \*pThis, [Udmf_ShareOption](#udmf_shareoption) option) | Sets the share option for an [OH_UdmfProperty](#oh_udmfproperty) instance.| 283| int [OH_UdmfProperty_SetExtrasIntParam](#oh_udmfproperty_setextrasintparam) ([OH_UdmfProperty](#oh_udmfproperty) \*pThis, const char \*key, int param) | Sets the extra integer parameter for an [OH_UdmfProperty](#oh_udmfproperty) instance.| 284| int [OH_UdmfProperty_SetExtrasStringParam](#oh_udmfproperty_setextrasstringparam) ([OH_UdmfProperty](#oh_udmfproperty) \*pThis, const char \*key, const char \*param) | Sets the extra string parameter for an [OH_UdmfProperty](#oh_udmfproperty) instance.| 285| int [OH_Udmf_GetUnifiedData](#oh_udmf_getunifieddata) (const char \*key, [Udmf_Intention](#udmf_intention) intention, [OH_UdmfData](#oh_udmfdata) \*unifiedData) | Obtains an [OH_UdmfData](#oh_udmfdata) instance from the UDMF database.| 286| int [OH_Udmf_SetUnifiedData](#oh_udmf_setunifieddata) ([Udmf_Intention](#udmf_intention) intention, [OH_UdmfData](#oh_udmfdata) \*unifiedData, char \*key, unsigned int keyLen) | Sets an [OH_UdmfData](#oh_udmfdata) instance in the UDMF database.| 287| [OH_UdsPlainText](#oh_udsplaintext) \* [OH_UdsPlainText_Create](#oh_udsplaintext_create) () | Creates an [OH_UdsPlainText](#oh_udsplaintext) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsPlainText_Destroy](#oh_udsplaintext_destroy) to destroy it. Otherwise, memory leaks may occur.| 288| void [OH_UdsPlainText_Destroy](#oh_udsplaintext_destroy) ([OH_UdsPlainText](#oh_udsplaintext) \*pThis) | Destroys an [OH_UdsPlainText](#oh_udsplaintext) instance.| 289| const char \* [OH_UdsPlainText_GetType](#oh_udsplaintext_gettype) ([OH_UdsPlainText](#oh_udsplaintext) \*pThis) | Obtains the type ID from an [OH_UdsPlainText](#oh_udsplaintext) instance.| 290| const char \* [OH_UdsPlainText_GetContent](#oh_udsplaintext_getcontent) ([OH_UdsPlainText](#oh_udsplaintext) \*pThis) | Obtains the plaintext from an [OH_UdsPlainText](#oh_udsplaintext) instance.| 291| const char \* [OH_UdsPlainText_GetAbstract](#oh_udsplaintext_getabstract) ([OH_UdsPlainText](#oh_udsplaintext) \*pThis) | Obtains the abstract from an [OH_UdsPlainText](#oh_udsplaintext) instance.| 292| int [OH_UdsPlainText_SetContent](#oh_udsplaintext_setcontent) ([OH_UdsPlainText](#oh_udsplaintext) \*pThis, const char \*content) | Sets the plaintext for an [OH_UdsPlainText](#oh_udsplaintext) instance.| 293| int [OH_UdsPlainText_SetAbstract](#oh_udsplaintext_setabstract) ([OH_UdsPlainText](#oh_udsplaintext) \*pThis, const char \*abstract) | Sets the abstract for an [OH_UdsPlainText](#oh_udsplaintext) instance.| 294| [OH_UdsHyperlink](#oh_udshyperlink) \* [OH_UdsHyperlink_Create](#oh_udshyperlink_create) () | Creates an [OH_UdsHyperlink](#oh_udshyperlink) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsHyperlink_Destroy](#oh_udshyperlink_destroy) to destroy it. Otherwise, memory leaks may occur.| 295| void [OH_UdsHyperlink_Destroy](#oh_udshyperlink_destroy) ([OH_UdsHyperlink](#oh_udshyperlink) \*pThis) | Destroys an [OH_UdsHyperlink](#oh_udshyperlink) instance.| 296| const char \* [OH_UdsHyperlink_GetType](#oh_udshyperlink_gettype) ([OH_UdsHyperlink](#oh_udshyperlink) \*pThis) | Obtains the type ID from an [OH_UdsHyperlink](#oh_udshyperlink) instance.| 297| const char \* [OH_UdsHyperlink_GetUrl](#oh_udshyperlink_geturl) ([OH_UdsHyperlink](#oh_udshyperlink) \*pThis) | Obtains the URL from an [OH_UdsHyperlink](#oh_udshyperlink) instance.| 298| const char \* [OH_UdsHyperlink_GetDescription](#oh_udshyperlink_getdescription) ([OH_UdsHyperlink](#oh_udshyperlink) \*pThis) | Obtains the description from an [OH_UdsHyperlink](#oh_udshyperlink) instance.| 299| int [OH_UdsHyperlink_SetUrl](#oh_udshyperlink_seturl) ([OH_UdsHyperlink](#oh_udshyperlink) \*pThis, const char \*url) | Sets the URL for an [OH_UdsHyperlink](#oh_udshyperlink) instance.| 300| int [OH_UdsHyperlink_SetDescription](#oh_udshyperlink_setdescription) ([OH_UdsHyperlink](#oh_udshyperlink) \*pThis, const char \*description) | Sets the description for an [OH_UdsHyperlink](#oh_udshyperlink) instance.| 301| [OH_UdsHtml](#oh_udshtml) \* [OH_UdsHtml_Create](#oh_udshtml_create) () | Creates an [OH_UdsHtml](#oh_udshtml) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsHtml_Destroy](#oh_udshtml_destroy) to destroy it. Otherwise, memory leaks may occur.| 302| void [OH_UdsHtml_Destroy](#oh_udshtml_destroy) ([OH_UdsHtml](#oh_udshtml) \*pThis) | Destroys an [OH_UdsHtml](#oh_udshtml) instance.| 303| const char \* [OH_UdsHtml_GetType](#oh_udshtml_gettype) ([OH_UdsHtml](#oh_udshtml) \*pThis) | Obtains the type ID from an [OH_UdsHtml](#oh_udshtml) instance.| 304| const char \* [OH_UdsHtml_GetContent](#oh_udshtml_getcontent) ([OH_UdsHtml](#oh_udshtml) \*pThis) | Obtains the HTML content from an [OH_UdsHtml](#oh_udshtml) instance.| 305| const char \* [OH_UdsHtml_GetPlainContent](#oh_udshtml_getplaincontent) ([OH_UdsHtml](#oh_udshtml) \*pThis) | Obtains the plaintext from an [OH_UdsHtml](#oh_udshtml) instance.| 306| int [OH_UdsHtml_SetContent](#oh_udshtml_setcontent) ([OH_UdsHtml](#oh_udshtml) \*pThis, const char \*content) | Sets the HTML content for an [OH_UdsHtml](#oh_udshtml) instance.| 307| int [OH_UdsHtml_SetPlainContent](#oh_udshtml_setplaincontent) ([OH_UdsHtml](#oh_udshtml) \*pThis, const char \*plainContent) | Sets the plaintext for an [OH_UdsHtml](#oh_udshtml) instance.| 308| [OH_UdsAppItem](#oh_udsappitem) \* [OH_UdsAppItem_Create](#oh_udsappitem_create) () | Creates an [OH_UdsAppItem](#oh_udsappitem) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsAppItem_Destroy](#oh_udsappitem_destroy) to destroy it. Otherwise, memory leaks may occur.| 309| void [OH_UdsAppItem_Destroy](#oh_udsappitem_destroy) ([OH_UdsAppItem](#oh_udsappitem) \*pThis) | Destroys an [OH_UdsAppItem](#oh_udsappitem) instance.| 310| const char \* [OH_UdsAppItem_GetType](#oh_udsappitem_gettype) ([OH_UdsAppItem](#oh_udsappitem) \*pThis) | Obtains the type ID from an [OH_UdsAppItem](#oh_udsappitem) instance.| 311| const char \* [OH_UdsAppItem_GetId](#oh_udsappitem_getid) ([OH_UdsAppItem](#oh_udsappitem) \*pThis) | Obtains the application ID from an [OH_UdsAppItem](#oh_udsappitem) instance.| 312| const char \* [OH_UdsAppItem_GetName](#oh_udsappitem_getname) ([OH_UdsAppItem](#oh_udsappitem) \*pThis) | Obtains the application name from an [OH_UdsAppItem](#oh_udsappitem) instance.| 313| const char \* [OH_UdsAppItem_GetIconId](#oh_udsappitem_geticonid) ([OH_UdsAppItem](#oh_udsappitem) \*pThis) | Obtains the application icon ID from an [OH_UdsAppItem](#oh_udsappitem) instance.| 314| const char \* [OH_UdsAppItem_GetLabelId](#oh_udsappitem_getlabelid) ([OH_UdsAppItem](#oh_udsappitem) \*pThis) | Obtains the application label ID from an [OH_UdsAppItem](#oh_udsappitem) instance.| 315| const char \* [OH_UdsAppItem_GetBundleName](#oh_udsappitem_getbundlename) ([OH_UdsAppItem](#oh_udsappitem) \*pThis) | Obtains the bundle name from an [OH_UdsAppItem](#oh_udsappitem) instance.| 316| const char \* [OH_UdsAppItem_GetAbilityName](#oh_udsappitem_getabilityname) ([OH_UdsAppItem](#oh_udsappitem) \*pThis) | Obtains the ability name from an [OH_UdsAppItem](#oh_udsappitem) instance.| 317| int [OH_UdsAppItem_SetId](#oh_udsappitem_setid) ([OH_UdsAppItem](#oh_udsappitem) \*pThis, const char \*appId) | Sets the application ID for an [OH_UdsAppItem](#oh_udsappitem) instance.| 318| int [OH_UdsAppItem_SetName](#oh_udsappitem_setname) ([OH_UdsAppItem](#oh_udsappitem) \*pThis, const char \*appName) | Sets the application name for an [OH_UdsAppItem](#oh_udsappitem) instance.| 319| int [OH_UdsAppItem_SetIconId](#oh_udsappitem_seticonid) ([OH_UdsAppItem](#oh_udsappitem) \*pThis, const char \*appIconId) | Sets the application icon ID for an [OH_UdsAppItem](#oh_udsappitem) instance.| 320| int [OH_UdsAppItem_SetLabelId](#oh_udsappitem_setlabelid) ([OH_UdsAppItem](#oh_udsappitem) \*pThis, const char \*appLabelId) | Sets the application label ID for an [OH_UdsAppItem](#oh_udsappitem) instance.| 321| int [OH_UdsAppItem_SetBundleName](#oh_udsappitem_setbundlename) ([OH_UdsAppItem](#oh_udsappitem) \*pThis, const char \*bundleName) | Sets the bundle name for an [OH_UdsAppItem](#oh_udsappitem) instance.| 322| int [OH_UdsAppItem_SetAbilityName](#oh_udsappitem_setabilityname) ([OH_UdsAppItem](#oh_udsappitem) \*pThis, const char \*abilityName) | Sets the ability name for an [OH_UdsAppItem](#oh_udsappitem) instance.| 323| [OH_UdsFileUri](#oh_udsfileuri) \* [OH_UdsFileUri_Create](#oh_udsfileuri_create) () | Creates an [OH_UdsFileUri](#oh_udsfileuri) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsFileUri_Destroy](#oh_udsfileuri_destroy) to destroy it. Otherwise, memory leaks may occur.| 324| void [OH_UdsFileUri_Destroy](#oh_udsfileuri_destroy) ([OH_UdsFileUri](#oh_udsfileuri) \*pThis) | Destroys an [OH_UdsFileUri](#oh_udsfileuri) instance.| 325| const char \* [OH_UdsFileUri_GetType](#oh_udsfileuri_gettype) ([OH_UdsFileUri](#oh_udsfileuri) \*pThis) | Obtains the type ID from an [OH_UdsFileUri](#oh_udsfileuri) instance.| 326| const char \* [OH_UdsFileUri_GetFileUri](#oh_udsfileuri_getfileuri) ([OH_UdsFileUri](#oh_udsfileuri) \*pThis) | Obtains the file URI from an [OH_UdsFileUri](#oh_udsfileuri) instance.| 327| const char \* [OH_UdsFileUri_GetFileType](#oh_udsfileuri_getfiletype) ([OH_UdsFileUri](#oh_udsfileuri) \*pThis) | Obtains the file type from an [OH_UdsFileUri](#oh_udsfileuri) instance.| 328| int [OH_UdsFileUri_SetFileUri](#oh_udsfileuri_setfileuri) ([OH_UdsFileUri](#oh_udsfileuri) \*pThis, const char \*fileUri) | Sets the URI information for an [OH_UdsFileUri](#oh_udsfileuri) instance.| 329| int [OH_UdsFileUri_SetFileType](#oh_udsfileuri_setfiletype) ([OH_UdsFileUri](#oh_udsfileuri) \*pThis, const char \*fileType) | Sets the file type for an [OH_UdsFileUri](#oh_udsfileuri) instance.| 330| [OH_UdsPixelMap](#oh_udspixelmap) \* [OH_UdsPixelMap_Create](#oh_udspixelmap_create) () | Creates an [OH_UdsPixelMap](#oh_udspixelmap) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsPixelMap_Destroy](#oh_udspixelmap_destroy) to destroy it. Otherwise, memory leaks may occur.| 331| void [OH_UdsPixelMap_Destroy](#oh_udspixelmap_destroy) ([OH_UdsPixelMap](#oh_udspixelmap) \*pThis) | Destroys an [OH_UdsPixelMap](#oh_udspixelmap) instance.| 332| const char \* [OH_UdsPixelMap_GetType](#oh_udspixelmap_gettype) ([OH_UdsPixelMap](#oh_udspixelmap) \*pThis) | Obtains the type ID from an [OH_UdsPixelMap](#oh_udspixelmap) instance.| 333| void [OH_UdsPixelMap_GetPixelMap](#oh_udspixelmap_getpixelmap) ([OH_UdsPixelMap](#oh_udspixelmap) \*pThis, OH_PixelmapNative \*pixelmapNative) | Obtains the pointer to the **OH_PixelmapNative** instance from an [OH_UdsPixelMap](#oh_udspixelmap) instance.| 334| int [OH_UdsPixelMap_SetPixelMap](#oh_udspixelmap_setpixelmap) ([OH_UdsPixelMap](#oh_udspixelmap) \*pThis, OH_PixelmapNative \*pixelmapNative) | Sets the pixel map content for an [OH_UdsPixelMap](#oh_udspixelmap) instance.| 335| [OH_UdsArrayBuffer](#oh_udsarraybuffer) \* [OH_UdsArrayBuffer_Create](#oh_udsarraybuffer_create) () | Creates an [OH_UdsArrayBuffer](#oh_udsarraybuffer) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsArrayBuffer_Destroy](#oh_udsarraybuffer_destroy) to destroy it. Otherwise, memory leaks may occur.| 336| int [OH_UdsArrayBuffer_Destroy](#oh_udsarraybuffer_destroy) ([OH_UdsArrayBuffer](#oh_udsarraybuffer) \*buffer) | Destroys an [OH_UdsArrayBuffer](#oh_udsarraybuffer) instance.| 337| int [OH_UdsArrayBuffer_SetData](#oh_udsarraybuffer_setdata) ([OH_UdsArrayBuffer](#oh_udsarraybuffer) \*buffer, unsigned char \*data, unsigned int len) | Sets an [OH_UdsArrayBuffer](#oh_udsarraybuffer) instance.| 338| int [OH_UdsArrayBuffer_GetData](#oh_udsarraybuffer_getdata) ([OH_UdsArrayBuffer](#oh_udsarraybuffer) \*buffer, unsigned char \*\*data, unsigned int \*len) | Obtains the custom ArrayBuffer data from an [OH_UdsArrayBuffer](#oh_udsarraybuffer) instance.| 339| [OH_Utd](#oh_utd) \* [OH_Utd_Create](#oh_utd_create) (const char \*typeId) | Creates an [OH_Utd](#oh_utd) instance and a pointer to it.| 340| void [OH_Utd_Destroy](#oh_utd_destroy) ([OH_Utd](#oh_utd) \*pThis) | Destroys an [OH_Utd](#oh_utd) instance.| 341| const char \* [OH_Utd_GetTypeId](#oh_utd_gettypeid) ([OH_Utd](#oh_utd) \*pThis) | Obtains the type ID from an [OH_Utd](#oh_utd) instance.| 342| const char \* [OH_Utd_GetDescription](#oh_utd_getdescription) ([OH_Utd](#oh_utd) \*pThis) | Obtains the description from an [OH_Utd](#oh_utd) instance.| 343| const char \* [OH_Utd_GetReferenceUrl](#oh_utd_getreferenceurl) ([OH_Utd](#oh_utd) \*pThis) | Obtains the URL from an [OH_Utd](#oh_utd) instance.| 344| const char \* [OH_Utd_GetIconFile](#oh_utd_geticonfile) ([OH_Utd](#oh_utd) \*pThis) | Obtains the path of the default icon file from an [OH_Utd](#oh_utd) instance.| 345| const char \*\* [OH_Utd_GetBelongingToTypes](#oh_utd_getbelongingtotypes) ([OH_Utd](#oh_utd) \*pThis, unsigned int \*count) | Obtains the relationships between the data in an [OH_Utd](#oh_utd) instance.| 346| const char \*\* [OH_Utd_GetFilenameExtensions](#oh_utd_getfilenameextensions) ([OH_Utd](#oh_utd) \*pThis, unsigned int \*count) | Obtains the file name extensions associated with an [OH_Utd](#oh_utd) instance.| 347| const char \*\* [OH_Utd_GetMimeTypes](#oh_utd_getmimetypes) ([OH_Utd](#oh_utd) \*pThis, unsigned int \*count) | Obtains the MIME types associated with an [OH_Utd](#oh_utd) instance.| 348| const char \*\* [OH_Utd_GetTypesByFilenameExtension](#oh_utd_gettypesbyfilenameextension) (const char \*extension, unsigned int \*count) | Obtains the uniform data types based on the file name extensions.| 349| const char \*\* [OH_Utd_GetTypesByMimeType](#oh_utd_gettypesbymimetype) (const char \*mimeType, unsigned int \*count) | Obtains the uniform data types based on the MIME types.| 350| bool [OH_Utd_BelongsTo](#oh_utd_belongsto) (const char \*srcTypeId, const char \*destTypeId) | Checks whether a UTD belongs to the target UTD.| 351| bool [OH_Utd_IsLower](#oh_utd_islower) (const char \*srcTypeId, const char \*destTypeId) | Checks whether a UTD is a lower-level type of the target UTD. For example, **TYPE_SCRIPT** is a lower-level type of **SOURCE_CODE**, and **TYPE_SCRIPT** and **SOURCE_CODE** are lower-level types of **PLAIN_TEXT**.| 352| bool [OH_Utd_IsHigher](#oh_utd_ishigher) (const char \*srcTypeId, const char \*destTypeId) | Checks whether a UTD is a higher-level type of the target UTD. For example, **SOURCE_CODE** is a higher-level type of **TYPE_SCRIPT**, and **PLAIN_TEXT** is a higher-level type of **SOURCE_CODE** and **TYPE_SCRIPT**.| 353| bool [OH_Utd_Equals](#oh_utd_equals) ([OH_Utd](#oh_utd) \*utd1, [OH_Utd](#oh_utd) \*utd2) | Checks whether two UTDs are the same.| 354| void [OH_Utd_DestroyStringList](#oh_utd_destroystringlist) (const char \*\*list, unsigned int count) | Destroys a UTD string list.| 355 356 357## Macro Description 358 359### UDMF_METE_GENERAL_CONTENT_FORM 360 361``` 362#define UDMF_METE_GENERAL_CONTENT_FORM "general.content-form" 363``` 364 365**Description** 366 367Defines the content widget type.<br>This type belongs to **OBJECT**. 368 369**Since**: 14 370 371### UDMF_KEY_BUFFER_LEN 372 373``` 374#define UDMF_KEY_BUFFER_LEN (512) 375``` 376 377**Description** 378 379Specifies the minimum length of the buffer that holds the key (unique identifier) of a uniform data object. 380 381**Since**: 12 382 383 384### UDMF_META_AAC 385 386``` 387#define UDMF_META_AAC "general.aac" 388``` 389 390**Description** 391 392Indicates AAC, which belongs to **AUDIO**. 393 394**Since**: 12 395 396 397### UDMF_META_AI_IMAGE 398 399``` 400#define UDMF_META_AI_IMAGE "com.adobe.illustrator.ai-image" 401``` 402 403**Description** 404 405Indicates adobe Illustrator image (.ai), which belongs to **IMAGE**. 406 407**Since**: 12 408 409 410### UDMF_META_AIFC_AUDIO 411 412``` 413#define UDMF_META_AIFC_AUDIO "general.aifc-audio" 414``` 415 416**Description** 417 418Indicates AIFC, which belongs to **AUDIO**. 419 420**Since**: 12 421 422 423### UDMF_META_AIFF 424 425``` 426#define UDMF_META_AIFF "general.aiff" 427``` 428 429**Description** 430 431Indicates AIFF, which belongs to **AUDIO**. 432 433**Since**: 12 434 435 436### UDMF_META_ALAC 437 438``` 439#define UDMF_META_ALAC "general.alac" 440``` 441 442**Description** 443 444Indicates ALAC, which belongs to **AUDIO**. 445 446**Since**: 12 447 448 449### UDMF_META_ARCHIVE 450 451``` 452#define UDMF_META_ARCHIVE "general.archive" 453``` 454 455**Description** 456 457Indicates the generic archive file type, which belongs to **OBJECT**. 458 459**Since**: 12 460 461 462### UDMF_META_AU_AUDIO 463 464``` 465#define UDMF_META_AU_AUDIO "general.au-audio" 466``` 467 468**Description** 469 470Indicates the AU format, which belongs to **AUDIO**. 471 472**Since**: 12 473 474 475### UDMF_META_AUDIO 476 477``` 478#define UDMF_META_AUDIO "general.audio" 479``` 480 481**Description** 482 483Indicates the generic audio type, which belongs to **MEDIA**. 484 485**Since**: 12 486 487 488### UDMF_META_AVI 489 490``` 491#define UDMF_META_AVI "general.avi" 492``` 493 494**Description** 495 496Indicates AVI, which belongs to **VIDEO**. 497 498**Since**: 12 499 500 501### UDMF_META_AZW 502 503``` 504#define UDMF_META_AZW "com.amazon.azw" 505``` 506 507**Description** 508 509Indicates AZW, which belongs to **EBOOK**. 510 511**Since**: 12 512 513 514### UDMF_META_AZW3 515 516``` 517#define UDMF_META_AZW3 "com.amazon.azw3" 518``` 519 520**Description** 521 522Indicates AZW3, which belongs to **EBOOK**. 523 524**Since**: 12 525 526 527### UDMF_META_BMP 528 529``` 530#define UDMF_META_BMP "com.microsoft.bmp" 531``` 532 533**Description** 534 535Indicates BMP, which belongs to **IMAGE**. 536 537**Since**: 12 538 539 540### UDMF_META_BZ2_ARCHIVE 541 542``` 543#define UDMF_META_BZ2_ARCHIVE "general.bz2-archive" 544``` 545 546**Description** 547 548Indicates BZ2, which belongs to **ARCHIVE**. 549 550**Since**: 12 551 552 553### UDMF_META_C_HEADER 554 555``` 556#define UDMF_META_C_HEADER "general.c-header" 557``` 558 559**Description** 560 561Indicates a header file in C, which belongs to **SOURCE_CODE**. 562 563**Since**: 12 564 565 566### UDMF_META_C_PLUS_PLUS_HEADER 567 568``` 569#define UDMF_META_C_PLUS_PLUS_HEADER "general.c-plus-plus-header" 570``` 571 572**Description** 573 574Indicates a header file in C++, which belongs to **SOURCE_CODE**. 575 576**Since**: 12 577 578 579### UDMF_META_C_PLUS_PLUS_SOURCE 580 581``` 582#define UDMF_META_C_PLUS_PLUS_SOURCE "general.c-plus-plus-source" 583``` 584 585**Description** 586 587Indicates the source code in C++, which belongs to **SOURCE_CODE**. 588 589**Since**: 12 590 591 592### UDMF_META_C_SOURCE 593 594``` 595#define UDMF_META_C_SOURCE "general.c-source" 596``` 597 598**Description** 599 600Indicates the source code in C, which belongs to **SOURCE_CODE**. 601 602**Since**: 12 603 604 605### UDMF_META_CALENDAR 606 607``` 608#define UDMF_META_CALENDAR "general.calendar" 609``` 610 611**Description** 612 613Indicates the generic calendar type, which belongs to **OBJECT**. 614 615**Since**: 12 616 617 618### UDMF_META_COMPOSITE_OBJECT 619 620``` 621#define UDMF_META_COMPOSITE_OBJECT "general.composite-object" 622``` 623 624**Description** 625 626Indicates the generic composite content type. For example, a PDF file that contains text and image. This type belongs to **OBJECT**. 627 628**Since**: 12 629 630 631### UDMF_META_CONTACT 632 633``` 634#define UDMF_META_CONTACT "general.contact" 635``` 636 637**Description** 638 639Indicates the generic contact type. This type belongs to **OBJECT**. 640 641**Since**: 12 642 643 644### UDMF_META_CSH_SCRIPT 645 646``` 647#define UDMF_META_CSH_SCRIPT "general.csh-script" 648``` 649 650**Description** 651 652Indicates a C shell script, which belongs to **SHELL_SCRIPT**. 653 654**Since**: 12 655 656 657### UDMF_META_DATABASE 658 659``` 660#define UDMF_META_DATABASE "general.database" 661``` 662 663**Description** 664 665Indicates the generic database file type, which belongs to **OBJECT**. 666 667**Since**: 12 668 669 670### UDMF_META_DIRECTORY 671 672``` 673#define UDMF_META_DIRECTORY "general.directory" 674``` 675 676**Description** 677 678Indicates the generic directory type, which belongs to **ENTITY**. 679 680**Since**: 12 681 682 683### UDMF_META_DISK_IMAGE 684 685``` 686#define UDMF_META_DISK_IMAGE "general.disk-image" 687``` 688 689**Description** 690 691Indicates the generic type of any file that can be mounted as a volume. This type belongs to **ARCHIVE**. 692 693**Since**: 12 694 695 696### UDMF_META_EBOOK 697 698``` 699#define UDMF_META_EBOOK "general.ebook" 700``` 701 702**Description** 703 704Indicates the generic eBook file format, which belongs to **COMPOSITE_OBJECT**. 705 706**Since**: 12 707 708 709### UDMF_META_EFX_FAX 710 711``` 712#define UDMF_META_EFX_FAX "com.js.efx-fax" 713``` 714 715**Description** 716 717Indicates the EFX file format, which belongs to **FAX**. 718 719**Since**: 12 720 721 722### UDMF_META_ENCAPSULATED_POSTSCRIPT 723 724``` 725#define UDMF_META_ENCAPSULATED_POSTSCRIPT "com.adobe.encapsulated-postscript" 726``` 727 728**Description** 729 730Indicates encapsulated PostScript, which belongs to **POSTSCRIPT**. 731 732**Since**: 12 733 734 735### UDMF_META_ENTITY 736 737``` 738#define UDMF_META_ENTITY "general.entity" 739``` 740 741**Description** 742 743Indicates the generic type that represents all physical storage types. It is used to define physical properties of a type. This type is uncategorized. 744 745**Since**: 12 746 747 748### UDMF_META_EPUB 749 750``` 751#define UDMF_META_EPUB "general.epub" 752``` 753 754**Description** 755 756Indicates EPUB, which belongs to **EBOOK**. 757 758**Since**: 12 759 760 761### UDMF_META_EXCEL 762 763``` 764#define UDMF_META_EXCEL "com.microsoft.excel.xls" 765``` 766 767**Description** 768 769Indicates Microsoft Excel, which belongs to **COMPOSITE_OBJECT**. 770 771**Since**: 12 772 773 774### UDMF_META_EXECUTABLE 775 776``` 777#define UDMF_META_EXECUTABLE "general.executable" 778``` 779 780**Description** 781 782Indicates the generic type of all executable files, which belongs to **OBJECT**. 783 784**Since**: 12 785 786 787### UDMF_META_FAX 788 789``` 790#define UDMF_META_FAX "general.fax" 791``` 792 793**Description** 794 795Indicates the generic fax type, which belongs to **IMAGE**. 796 797**Since**: 12 798 799 800### UDMF_META_FLAC 801 802``` 803#define UDMF_META_FLAC "general.flac" 804``` 805 806**Description** 807 808Indicates FLAC, which belongs to **AUDIO**. 809 810**Since**: 12 811 812 813### UDMF_META_FLASHPIX_IMAGE 814 815``` 816#define UDMF_META_FLASHPIX_IMAGE "com.kodak.flashpix.image" 817``` 818 819**Description** 820 821Indicates the FlashPix image format, which belongs to **IMAGE**. 822 823**Since**: 12 824 825 826### UDMF_META_FOLDER 827 828``` 829#define UDMF_META_FOLDER "general.folder" 830``` 831 832**Description** 833 834Indicates the generic folder type, which belongs to **DIRECTORY**. 835 836**Since**: 12 837 838 839### UDMF_META_FONT 840 841``` 842#define UDMF_META_FONT "general.font" 843``` 844 845**Description** 846 847Indicates the generic font type, which belongs to **OBJECT**. 848 849**Since**: 12 850 851 852### UDMF_META_GENERAL_FILE 853 854``` 855#define UDMF_META_GENERAL_FILE "general.file" 856``` 857 858**Description** 859 860Indicates the generic file type, which belongs to **ENTITY**. 861 862**Since**: 12 863 864 865### UDMF_META_GENERAL_FILE_URI 866 867``` 868#define UDMF_META_GENERAL_FILE_URI "general.file-uri" 869``` 870 871**Description** 872 873Indicates the file address type, which belongs to **TEXT**. 874 875**Since**: 13 876 877 878### UDMF_META_GNU_TAR_ARCHIVE 879 880``` 881#define UDMF_META_GNU_TAR_ARCHIVE "org.gnu.gnu-tar-archive" 882``` 883 884**Description** 885 886Indicates GUN archive, which belongs to **ARCHIVE**. 887 888**Since**: 12 889 890 891### UDMF_META_GNU_ZIP_ARCHIVE 892 893``` 894#define UDMF_META_GNU_ZIP_ARCHIVE "org.gnu.gnu-zip-archive" 895``` 896 897**Description** 898 899Indicates GZIP archive, which belongs to **ARCHIVE**. 900 901**Since**: 12 902 903 904### UDMF_META_GNU_ZIP_TAR_ARCHIVE 905 906``` 907#define UDMF_META_GNU_ZIP_TAR_ARCHIVE "org.gnu.gnu-zip-tar-archive" 908``` 909 910**Description** 911 912Indicates GZIP TAR, which belongs to **ARCHIVE**. 913 914**Since**: 12 915 916 917### UDMF_META_HTML 918 919``` 920#define UDMF_META_HTML "general.html" 921``` 922 923**Description** 924 925Indicates HTML, which belongs to **TEXT**. 926 927**Since**: 12 928 929 930### UDMF_META_HYPERLINK 931 932``` 933#define UDMF_META_HYPERLINK "general.hyperlink" 934``` 935 936**Description** 937 938Indicates Hyperlink, which belongs to **TEXT**. 939 940**Since**: 12 941 942 943### UDMF_META_ICO 944 945``` 946#define UDMF_META_ICO "com.microsoft.ico" 947``` 948 949**Description** 950 951Indicates Windows icon type, which belongs to **IMAGE**. 952 953**Since**: 12 954 955 956### UDMF_META_ICS 957 958``` 959#define UDMF_META_ICS "general.ics" 960``` 961 962**Description** 963 964Indicates the ICS format, which belongs to **CALENDAR** and **TEXT**. 965 966**Since**: 12 967 968 969### UDMF_META_IMAGE 970 971``` 972#define UDMF_META_IMAGE "general.image" 973``` 974 975**Description** 976 977Indicates the generic image type, which belongs to **MEDIA**. 978 979**Since**: 12 980 981 982### UDMF_META_JAVA_ARCHIVE 983 984``` 985#define UDMF_META_JAVA_ARCHIVE "com.sun.java-archive" 986``` 987 988**Description** 989 990Indicates JAR (Java archive), which belongs to **ARCHIVE** and **EXECUTABLE**. 991 992**Since**: 12 993 994 995### UDMF_META_JAVA_SCRIPT 996 997``` 998#define UDMF_META_JAVA_SCRIPT "general.java-script" 999``` 1000 1001**Description** 1002 1003Indicates JavaScript source code, which belongs to **SCRIPT**. 1004 1005**Since**: 12 1006 1007 1008### UDMF_META_JAVA_SOURCE 1009 1010``` 1011#define UDMF_META_JAVA_SOURCE "general.java-source" 1012``` 1013 1014**Description** 1015 1016Indicates Java source code, which belongs to **SOURCE_CODE**. 1017 1018**Since**: 12 1019 1020 1021### UDMF_META_JFX_FAX 1022 1023``` 1024#define UDMF_META_JFX_FAX "com.j2.jfx-fax" 1025``` 1026 1027**Description** 1028 1029Indicates the J2 jConnect fax file format, which belongs to **FAX**. 1030 1031**Since**: 12 1032 1033 1034### UDMF_META_JPEG 1035 1036``` 1037#define UDMF_META_JPEG "general.jpeg" 1038``` 1039 1040**Description** 1041 1042Indicates JPEG, which belongs to **IMAGE**. 1043 1044**Since**: 12 1045 1046 1047### UDMF_META_KFX 1048 1049``` 1050#define UDMF_META_KFX "com.amazon.kfx" 1051``` 1052 1053**Description** 1054 1055Indicates KFX, which belongs to **EBOOK**. 1056 1057**Since**: 12 1058 1059 1060### UDMF_META_LOCATION 1061 1062``` 1063#define UDMF_META_LOCATION "general.location" 1064``` 1065 1066**Description** 1067 1068Indicates location data type, which belongs to **NAVIGATION**. 1069 1070**Since**: 12 1071 1072 1073### UDMF_META_MARKDOWN 1074 1075``` 1076#define UDMF_META_MARKDOWN "general.markdown" 1077``` 1078 1079**Description** 1080 1081Indicates Markdown, which belongs to **PLAIN_TEXT**. 1082 1083**Since**: 12 1084 1085 1086### UDMF_META_MEDIA 1087 1088``` 1089#define UDMF_META_MEDIA "general.media" 1090``` 1091 1092**Description** 1093 1094Indicates the generic media type, which belongs to **OBJECT**. 1095 1096**Since**: 12 1097 1098 1099### UDMF_META_MESSAGE 1100 1101``` 1102#define UDMF_META_MESSAGE "general.message" 1103``` 1104 1105**Description** 1106 1107Indicates the generic message type, which belongs to **OBJECT**. 1108 1109**Since**: 12 1110 1111 1112### UDMF_META_MOBI 1113 1114``` 1115#define UDMF_META_MOBI "com.amazon.mobi" 1116``` 1117 1118**Description** 1119 1120Indicates MOBI, which belongs to **EBOOK**. 1121 1122**Since**: 12 1123 1124 1125### UDMF_META_MP3 1126 1127``` 1128#define UDMF_META_MP3 "general.mp3" 1129``` 1130 1131**Description** 1132 1133Indicates MP3, which belongs to **AUDIO**. 1134 1135**Since**: 12 1136 1137 1138### UDMF_META_MPEG 1139 1140``` 1141#define UDMF_META_MPEG "general.mpeg" 1142``` 1143 1144**Description** 1145 1146Indicates MPGE-1 or MPGE-2, which belongs to **VIDEO**. 1147 1148**Since**: 12 1149 1150 1151### UDMF_META_MPEG4 1152 1153``` 1154#define UDMF_META_MPEG4 "general.mpeg-4" 1155``` 1156 1157**Description** 1158 1159Indicates MPGE-4, which belongs to **VIDEO**. 1160 1161**Since**: 12 1162 1163 1164### UDMF_META_NAVIGATION 1165 1166``` 1167#define UDMF_META_NAVIGATION "general.navigation" 1168``` 1169 1170**Description** 1171 1172Generic navigation data type.<br>This type belongs to **OBJECT**. 1173 1174**Since**: 12 1175 1176 1177### UDMF_META_OBJECT 1178 1179``` 1180#define UDMF_META_OBJECT "general.object" 1181``` 1182 1183**Description** 1184 1185Indicates the generic type that represents all logical content types. It is used to describe the functional features of a type. This type is uncategorized. 1186 1187**Since**: 12 1188 1189 1190### UDMF_META_OGG 1191 1192``` 1193#define UDMF_META_OGG "general.ogg" 1194``` 1195 1196**Description** 1197 1198OGG.<br>This type belongs to **AUDIO**. 1199 1200**Since**: 12 1201 1202 1203### UDMF_META_OPENDOCUMENT 1204 1205``` 1206#define UDMF_META_OPENDOCUMENT "org.oasis.opendocument" 1207``` 1208 1209**Description** 1210 1211OpenDocument format for Office applications.<br>This type belongs to **ARCHIVE**. 1212 1213**Since**: 12 1214 1215 1216### UDMF_META_OPENDOCUMENT_FORMULA 1217 1218``` 1219#define UDMF_META_OPENDOCUMENT_FORMULA "org.oasis.opendocument.formula" 1220``` 1221 1222**Description** 1223 1224OpenDocument format for formula.<br>This type belongs to **OPENDOCUMENT**. 1225 1226**Since**: 12 1227 1228 1229### UDMF_META_OPENDOCUMENT_GRAPHICS 1230 1231``` 1232#define UDMF_META_OPENDOCUMENT_GRAPHICS "org.oasis.opendocument.graphics" 1233``` 1234 1235**Description** 1236 1237OpenDocument format for graphics.<br>This type belongs to **OPENDOCUMENT** and **COMPOSITE_OBJECT**. 1238 1239**Since**: 12 1240 1241 1242### UDMF_META_OPENDOCUMENT_PRESENTATION 1243 1244``` 1245#define UDMF_META_OPENDOCUMENT_PRESENTATION "org.oasis.opendocument.presentation" 1246``` 1247 1248**Description** 1249 1250OpenDocument format for presentations.<br>This type belongs to **OPENDOCUMENT** and **COMPOSITE_OBJECT**. 1251 1252**Since**: 12 1253 1254 1255### UDMF_META_OPENDOCUMENT_SPREADSHEET 1256 1257``` 1258#define UDMF_META_OPENDOCUMENT_SPREADSHEET "org.oasis.opendocument.spreadsheet" 1259``` 1260 1261**Description** 1262 1263OpenDocument format for spreadsheets.<br>This type belongs to **OPENDOCUMENT** and **COMPOSITE_OBJECT**. 1264 1265**Since**: 12 1266 1267 1268### UDMF_META_OPENDOCUMENT_TEXT 1269 1270``` 1271#define UDMF_META_OPENDOCUMENT_TEXT "org.oasis.opendocument.text" 1272``` 1273 1274**Description** 1275 1276OpenDocument format for word processing (text) documents.<br>This type belongs to **OPENDOCUMENT** and **COMPOSITE_OBJECT**. 1277 1278**Since**: 12 1279 1280 1281### UDMF_META_OPENEXR_IMAGE 1282 1283``` 1284#define UDMF_META_OPENEXR_IMAGE "com.ilm.openexr-image" 1285``` 1286 1287**Description** 1288 1289OpenXR image format.<br>This type belongs to **IMAGE**. 1290 1291**Since**: 12 1292 1293 1294### UDMF_META_OPENHARMONY_APP_ITEM 1295 1296``` 1297#define UDMF_META_OPENHARMONY_APP_ITEM "openharmony.app-item" 1298``` 1299 1300**Description** 1301 1302Home screen icon defined for the system.<br>This type belongs to **OBJECT**. 1303 1304**Since**: 12 1305 1306 1307### UDMF_META_OPENHARMONY_ATOMIC_SERVICE 1308 1309``` 1310#define UDMF_META_OPENHARMONY_ATOMIC_SERVICE "openharmony.atomic-service" 1311``` 1312 1313**Description** 1314 1315Atomic service type defined for the system.<br>This type belongs to **OBJECT**. 1316 1317**Since**: 12 1318 1319 1320### UDMF_META_OPENHARMONY_FORM 1321 1322``` 1323#define UDMF_META_OPENHARMONY_FORM "openharmony.form" 1324``` 1325 1326**Description** 1327 1328Widget defined for the system.<br>This type belongs to **OBJECT**. 1329 1330**Since**: 12 1331 1332 1333### UDMF_META_OPENHARMONY_HAP 1334 1335``` 1336#define UDMF_META_OPENHARMONY_HAP "openharmony.hap" 1337``` 1338 1339**Description** 1340 1341Ability package defined for the system.<br>This type belongs to **OPENHARMONY_PACKAGE**. 1342 1343**Since**: 12 1344 1345 1346### UDMF_META_OPENHARMONY_HDOC 1347 1348``` 1349#define UDMF_META_OPENHARMONY_HDOC "openharmony.hdoc" 1350``` 1351 1352**Description** 1353 1354Memo format defined for the system.<br>This type belongs to **COMPOSITE_OBJECT**. 1355 1356**Since**: 12 1357 1358 1359### UDMF_META_OPENHARMONY_HINOTE 1360 1361``` 1362#define UDMF_META_OPENHARMONY_HINOTE "openharmony.hinote" 1363``` 1364 1365**Description** 1366 1367Note format defined for the system.<br>This type belongs to **COMPOSITE_OBJECT**. 1368 1369**Since**: 12 1370 1371 1372### UDMF_META_OPENHARMONY_PACKAGE 1373 1374``` 1375#define UDMF_META_OPENHARMONY_PACKAGE "openharmony.package" 1376``` 1377 1378**Description** 1379 1380Package (compressed folder) defined for the system.<br>This type belongs to **DIRECTORY**. 1381 1382**Since**: 12 1383 1384 1385### UDMF_META_OPENHARMONY_PIXEL_MAP 1386 1387``` 1388#define UDMF_META_OPENHARMONY_PIXEL_MAP "openharmony.pixel-map" 1389``` 1390 1391**Description** 1392 1393Pixel map defined for the system.<br>This type belongs to **IMAGE**. 1394 1395**Since**: 12 1396 1397 1398### UDMF_META_OPENHARMONY_STYLED_STRING 1399 1400``` 1401#define UDMF_META_OPENHARMONY_STYLED_STRING "openharmony.styled-string" 1402``` 1403 1404**Description** 1405 1406Style string type defined for the system.<br>This type belongs to **COMPOSITE_OBJECT**. 1407 1408**Since**: 12 1409 1410 1411### UDMF_META_OPENHARMONY_WANT 1412 1413``` 1414#define UDMF_META_OPENHARMONY_WANT "openharmony.want" 1415``` 1416 1417**Description** 1418 1419Want defined for the system.<br>This type belongs to **OBJECT**. 1420 1421**Since**: 12 1422 1423 1424### UDMF_META_OPENTYPE_FONT 1425 1426``` 1427#define UDMF_META_OPENTYPE_FONT "general.opentype-font" 1428``` 1429 1430**Description** 1431 1432Indicates the OpenType font format, which belongs to **FONT**. 1433 1434**Since**: 12 1435 1436 1437### UDMF_META_OPENXML 1438 1439``` 1440#define UDMF_META_OPENXML "org.openxmlformats.openxml" 1441``` 1442 1443**Description** 1444 1445Indicates OpenXML, which belongs to **ARCHIVE**. 1446 1447**Since**: 12 1448 1449 1450### UDMF_META_PCM 1451 1452``` 1453#define UDMF_META_PCM "general.pcm" 1454``` 1455 1456**Description** 1457 1458Indicates PCM, which belongs to **AUDIO**. 1459 1460**Since**: 12 1461 1462 1463### UDMF_META_PDF 1464 1465``` 1466#define UDMF_META_PDF "com.adobe.pdf" 1467``` 1468 1469**Description** 1470 1471Indicates PDF, which belongs to **COMPOSITE_OBJECT**. 1472 1473**Since**: 12 1474 1475 1476### UDMF_META_PERL_SCRIPT 1477 1478``` 1479#define UDMF_META_PERL_SCRIPT "general.perl-script" 1480``` 1481 1482**Description** 1483 1484Indicates a Perl script, which belongs to **SHELL_SCRIPT**. 1485 1486**Since**: 12 1487 1488 1489### UDMF_META_PHOTOSHOP_IMAGE 1490 1491``` 1492#define UDMF_META_PHOTOSHOP_IMAGE "com.adobe.photoshop-image" 1493``` 1494 1495**Description** 1496 1497Indicates an Adobe Photoshop image, which belongs to **IMAGE**. 1498 1499**Since**: 12 1500 1501 1502### UDMF_META_PHP_SCRIPT 1503 1504``` 1505#define UDMF_META_PHP_SCRIPT "general.php-script" 1506``` 1507 1508**Description** 1509 1510Indicates a PHP script, which belongs to **SHELL_SCRIPT**. 1511 1512**Since**: 12 1513 1514 1515### UDMF_META_PLAIN_TEXT 1516 1517``` 1518#define UDMF_META_PLAIN_TEXT "general.plain-text" 1519``` 1520 1521**Description** 1522 1523Indicates text without specific encoding or identifier, which belongs to **TEXT**. 1524 1525**Since**: 12 1526 1527 1528### UDMF_META_PNG 1529 1530``` 1531#define UDMF_META_PNG "general.png" 1532``` 1533 1534**Description** 1535 1536Indicates PNG, which belongs to **IMAGE**. 1537 1538**Since**: 12 1539 1540 1541### UDMF_META_PORTABLE_EXECUTABLE 1542 1543``` 1544#define UDMF_META_PORTABLE_EXECUTABLE "com.microsoft.portable-executable" 1545``` 1546 1547**Description** 1548 1549Indicates the Microsoft Windows portable executable format, which belongs to **EXECUTABLE**. 1550 1551**Since**: 12 1552 1553 1554### UDMF_META_POSTSCRIPT 1555 1556``` 1557#define UDMF_META_POSTSCRIPT "com.adobe.postscript" 1558``` 1559 1560**Description** 1561 1562Indicates PostScript, which belongs to **COMPOSITE_OBJECT**. 1563 1564**Since**: 12 1565 1566 1567### UDMF_META_POSTSCRIPT_FONT 1568 1569``` 1570#define UDMF_META_POSTSCRIPT_FONT "com.adobe.postscript-font" 1571``` 1572 1573**Description** 1574 1575Indicates the PostScript font format, which belongs to **FONT**. 1576 1577**Since**: 12 1578 1579 1580### UDMF_META_POSTSCRIPT_PFA_FONT 1581 1582``` 1583#define UDMF_META_POSTSCRIPT_PFA_FONT "com.adobe.postscript-pfa-font" 1584``` 1585 1586**Description** 1587 1588Indicates Adobe Type 1 font format, which belongs to **FONT**. 1589 1590**Since**: 12 1591 1592 1593### UDMF_META_POSTSCRIPT_PFB_FONT 1594 1595``` 1596#define UDMF_META_POSTSCRIPT_PFB_FONT "com.adobe.postscript-pfb-font" 1597``` 1598 1599**Description** 1600 1601Indicates PostScript Font Binary font format, which belongs to **FONT**. 1602 1603**Since**: 12 1604 1605 1606### UDMF_META_PPT 1607 1608``` 1609#define UDMF_META_PPT "com.microsoft.powerpoint.ppt" 1610``` 1611 1612**Description** 1613 1614Indicates Microsoft PowerPoint presentation format, which belongs to **COMPOSITE_OBJECT**. 1615 1616**Since**: 12 1617 1618 1619### UDMF_META_PRESENTATIONML_PRESENTATION 1620 1621``` 1622#define UDMF_META_PRESENTATIONML_PRESENTATION "org.openxmlformats.presentationml.presentation" 1623``` 1624 1625**Description** 1626 1627Indicates PresentationML format, which belongs to **OPENXML** and **COMPOSITE_OBJECT**. 1628 1629**Since**: 12 1630 1631 1632### UDMF_META_PYTHON_SCRIPT 1633 1634``` 1635#define UDMF_META_PYTHON_SCRIPT "general.python-script" 1636``` 1637 1638**Description** 1639 1640Indicates a Python script, which belongs to **SHELL_SCRIPT**. 1641 1642**Since**: 12 1643 1644 1645### UDMF_META_RAW_IMAGE 1646 1647``` 1648#define UDMF_META_RAW_IMAGE "general.raw-image" 1649``` 1650 1651**Description** 1652 1653Indicates a raw image, which belongs to **IMAGE**. 1654 1655**Since**: 12 1656 1657 1658### UDMF_META_REALAUDIO 1659 1660``` 1661#define UDMF_META_REALAUDIO "com.real.realaudio" 1662``` 1663 1664**Description** 1665 1666Indicates RealAudio, which belongs to **AUDIO**. 1667 1668**Since**: 12 1669 1670 1671### UDMF_META_REALMEDIA 1672 1673``` 1674#define UDMF_META_REALMEDIA "com.real.realmedia" 1675``` 1676 1677**Description** 1678 1679Indicates RealMedia format, which belongs to **VIDEO**. 1680 1681**Since**: 12 1682 1683 1684### UDMF_META_RUBY_SCRIPT 1685 1686``` 1687#define UDMF_META_RUBY_SCRIPT "general.ruby-script" 1688``` 1689 1690**Description** 1691 1692Indicates a Ruby script, which belongs to **SHELL_SCRIPT**. 1693 1694**Since**: 12 1695 1696 1697### UDMF_META_SCRIPT 1698 1699``` 1700#define UDMF_META_SCRIPT "general.script" 1701``` 1702 1703**Description** 1704 1705Indicates the source code in any scripting language, which belongs to **SOURCE_CODE**. 1706 1707**Since**: 12 1708 1709 1710### UDMF_META_SD2_AUDIO 1711 1712``` 1713#define UDMF_META_SD2_AUDIO "com.digidesign.sd2-audio" 1714``` 1715 1716**Description** 1717 1718Indicates SDII, which belongs to **AUDIO**. 1719 1720**Since**: 12 1721 1722 1723### UDMF_META_SGI_IMAGE 1724 1725``` 1726#define UDMF_META_SGI_IMAGE "com.sgi.sgi-image" 1727``` 1728 1729**Description** 1730 1731Indicates SGI format, which belongs to **IMAGE**. 1732 1733**Since**: 12 1734 1735 1736### UDMF_META_SHELL_SCRIPT 1737 1738``` 1739#define UDMF_META_SHELL_SCRIPT "general.shell-script" 1740``` 1741 1742**Description** 1743 1744Indicates a Shell script, which belongs to **SCRIPT**. 1745 1746**Since**: 12 1747 1748 1749### UDMF_META_SMIL 1750 1751``` 1752#define UDMF_META_SMIL "com.real.smil" 1753``` 1754 1755**Description** 1756 1757Indicates SMIL, which belongs to **XML**. 1758 1759**Since**: 12 1760 1761 1762### UDMF_META_SOURCE_CODE 1763 1764``` 1765#define UDMF_META_SOURCE_CODE "general.source-code" 1766``` 1767 1768**Description** 1769 1770Indicates the generic source code type, which belongs to **PLAIN_TEXT**. 1771 1772**Since**: 12 1773 1774 1775### UDMF_META_SPREADSHEETML_SHEET 1776 1777``` 1778#define UDMF_META_SPREADSHEETML_SHEET "org.openxmlformats.spreadsheetml.sheet" 1779``` 1780 1781**Description** 1782 1783Indicates the SpreadsheetML format, which belongs to **OPENXML** and **COMPOSITE_OBJECT**. 1784 1785**Since**: 12 1786 1787 1788### UDMF_META_STUFFIT_ARCHIVE 1789 1790``` 1791#define UDMF_META_STUFFIT_ARCHIVE "com.allume.stuffit-archive" 1792``` 1793 1794**Description** 1795 1796Indicates the Stuffit compression format (stuffit archive), which belongs to **ARCHIVE**. 1797 1798**Since**: 12 1799 1800 1801### UDMF_META_SUN_JAVA_CLASS 1802 1803``` 1804#define UDMF_META_SUN_JAVA_CLASS "com.sun.java-class" 1805``` 1806 1807**Description** 1808 1809Indicates the Java class file format, which belongs to **EXECUTABLE**. 1810 1811**Since**: 12 1812 1813 1814### UDMF_META_SYMLINK 1815 1816``` 1817#define UDMF_META_SYMLINK "general.symlink" 1818``` 1819 1820**Description** 1821 1822Indicates the generic symbolic type, which belongs to **ENTITY**. 1823 1824**Since**: 12 1825 1826 1827### UDMF_META_TAR_ARCHIVE 1828 1829``` 1830#define UDMF_META_TAR_ARCHIVE "general.tar-archive" 1831``` 1832 1833**Description** 1834 1835Indicates TAR, which belongs to ARCHIVE. 1836 1837**Since**: 12 1838 1839 1840### UDMF_META_TEXT 1841 1842``` 1843#define UDMF_META_TEXT "general.text" 1844``` 1845 1846**Description** 1847 1848Indicates the generic text type, which belongs to **OBJECT**. 1849 1850**Since**: 12 1851 1852 1853### UDMF_META_TGA_IMAGE 1854 1855``` 1856#define UDMF_META_TGA_IMAGE "com.truevision.tga-image" 1857``` 1858 1859**Description** 1860 1861Indicates TGA, which belongs to **IMAGE**. 1862 1863**Since**: 12 1864 1865 1866### UDMF_META_TIFF 1867 1868``` 1869#define UDMF_META_TIFF "general.tiff" 1870``` 1871 1872**Description** 1873 1874Indicates TIFF, which belongs to **IMAGE**. 1875 1876**Since**: 12 1877 1878 1879### UDMF_META_TRUETYPE_COLLECTION_FONT 1880 1881``` 1882#define UDMF_META_TRUETYPE_COLLECTION_FONT "general.truetype-collection-font" 1883``` 1884 1885**Description** 1886 1887Indicates the TrueType Collection font format, which belongs to **FONT**. 1888 1889**Since**: 12 1890 1891 1892### UDMF_META_TRUETYPE_FONT 1893 1894``` 1895#define UDMF_META_TRUETYPE_FONT "general.truetype-font" 1896``` 1897 1898**Description** 1899 1900Indicates the TrueType font format, which belongs to **FONT**. 1901 1902**Since**: 12 1903 1904 1905### UDMF_META_TYPE_SCRIPT 1906 1907``` 1908#define UDMF_META_TYPE_SCRIPT "general.type-script" 1909``` 1910 1911**Description** 1912 1913Indicates TypeScript source code, which belongs to **SCRIPT**. 1914 1915**Since**: 12 1916 1917 1918### UDMF_META_VCARD 1919 1920``` 1921#define UDMF_META_VCARD "general.vcard" 1922``` 1923 1924**Description** 1925 1926Indicates the generic electronic business card type, which belongs to **OBJECT**. 1927 1928**Since**: 12 1929 1930 1931### UDMF_META_VCS 1932 1933``` 1934#define UDMF_META_VCS "general.vcs" 1935``` 1936 1937**Description** 1938 1939Indicates the VCS format, which belongs to **CALENDAR** and **TEXT**. 1940 1941**Since**: 12 1942 1943 1944### UDMF_META_VIDEO 1945 1946``` 1947#define UDMF_META_VIDEO "general.video" 1948``` 1949 1950**Description** 1951 1952Indicates the generic video type, which belongs to **MEDIA**. 1953 1954**Since**: 12 1955 1956 1957### UDMF_META_VIDEO_3GPP 1958 1959``` 1960#define UDMF_META_VIDEO_3GPP "general.3gpp" 1961``` 1962 1963**Description** 1964 1965Indicates 3GP (3GPP file format), which belongs to **VIDEO**. 1966 1967**Since**: 12 1968 1969 1970### UDMF_META_VIDEO_3GPP2 1971 1972``` 1973#define UDMF_META_VIDEO_3GPP2 "general.3gpp2" 1974``` 1975 1976**Description** 1977 1978Indicates 3G2 (3GPP2 file format), which belongs to **VIDEO**. 1979 1980**Since**: 12 1981 1982 1983### UDMF_META_WAVEFORM_AUDIO 1984 1985``` 1986#define UDMF_META_WAVEFORM_AUDIO "com.microsoft.waveform-audio" 1987``` 1988 1989**Description** 1990 1991Indicates Windows Waveform, which belongs to **AUDIO**. 1992 1993**Since**: 12 1994 1995 1996### UDMF_META_WINDOWS_MEDIA_WAX 1997 1998``` 1999#define UDMF_META_WINDOWS_MEDIA_WAX "com.microsoft.windows-media-wax" 2000``` 2001 2002**Description** 2003 2004Indicates Windows WAX, which belongs to **AUDIO**. 2005 2006**Since**: 12 2007 2008 2009### UDMF_META_WINDOWS_MEDIA_WM 2010 2011``` 2012#define UDMF_META_WINDOWS_MEDIA_WM "com.microsoft.windows-media-wm" 2013``` 2014 2015**Description** 2016 2017Indicates Windows WM format, which belongs to **VIDEO**. 2018 2019**Since**: 12 2020 2021 2022### UDMF_META_WINDOWS_MEDIA_WMA 2023 2024``` 2025#define UDMF_META_WINDOWS_MEDIA_WMA "com.microsoft.windows-media-wma" 2026``` 2027 2028**Description** 2029 2030Indicates Windows WMA, which belongs to **AUDIO**. 2031 2032**Since**: 12 2033 2034 2035### UDMF_META_WINDOWS_MEDIA_WMP 2036 2037``` 2038#define UDMF_META_WINDOWS_MEDIA_WMP "com.microsoft.windows-media-wmp" 2039``` 2040 2041**Description** 2042 2043Indicates Windows WMP, which belongs to **VIDEO**. 2044 2045**Since**: 12 2046 2047 2048### UDMF_META_WINDOWS_MEDIA_WMV 2049 2050``` 2051#define UDMF_META_WINDOWS_MEDIA_WMV "com.microsoft.windows-media-wmv" 2052``` 2053 2054**Description** 2055 2056Indicates Windows WMV, which belongs to **VIDEO**. 2057 2058**Since**: 12 2059 2060 2061### UDMF_META_WINDOWS_MEDIA_WMX 2062 2063``` 2064#define UDMF_META_WINDOWS_MEDIA_WMX "com.microsoft.windows-media-wmx" 2065``` 2066 2067**Description** 2068 2069Indicates Windows WMX, which belongs to **VIDEO**. 2070 2071**Since**: 12 2072 2073 2074### UDMF_META_WINDOWS_MEDIA_WVX 2075 2076``` 2077#define UDMF_META_WINDOWS_MEDIA_WVX "com.microsoft.windows-media-wvx" 2078``` 2079 2080**Description** 2081 2082Indicates Windows WVX, which belongs to **VIDEO**. 2083 2084**Since**: 12 2085 2086 2087### UDMF_META_WORD_DOC 2088 2089``` 2090#define UDMF_META_WORD_DOC "com.microsoft.word.doc" 2091``` 2092 2093**Description** 2094 2095Indicates Microsoft Word, which belongs to **COMPOSITE_OBJECT**. 2096 2097**Since**: 12 2098 2099 2100### UDMF_META_WORDPROCESSINGML_DOCUMENT 2101 2102``` 2103#define UDMF_META_WORDPROCESSINGML_DOCUMENT "org.openxmlformats.wordprocessingml.document" 2104``` 2105 2106**Description** 2107 2108Indicates WordProcessingML format, which belongs to **OPENXML** and **COMPOSITE_OBJECT**. 2109 2110**Since**: 12 2111 2112 2113### UDMF_META_XBITMAP_IMAGE 2114 2115``` 2116#define UDMF_META_XBITMAP_IMAGE "general.xbitmap-image" 2117``` 2118 2119**Description** 2120 2121Indicates X BitMAP (XBM) used in the X Window system (X11), which belongs to **IMAGE**. 2122 2123**Since**: 12 2124 2125 2126### UDMF_META_XML 2127 2128``` 2129#define UDMF_META_XML "general.xml" 2130``` 2131 2132**Description** 2133 2134Indicates XML, which belongs to **TEXT**. 2135 2136**Since**: 12 2137 2138 2139### UDMF_META_ZIP_ARCHIVE 2140 2141``` 2142#define UDMF_META_ZIP_ARCHIVE "general.zip-archive" 2143``` 2144 2145**Description** 2146 2147Indicates ZIP, which belongs to **ARCHIVE**. 2148 2149**Since**: 12 2150 2151 2152## Type Description 2153 2154 2155### Udmf_ListenerStatus 2156 2157``` 2158typedef enum Udmf_ListenerStatusUdmf_ListenerStatus 2159``` 2160 2161**Description** 2162 2163Defines an enum for the status codes returned when data is obtained asynchronously. 2164 2165**Since**: 15 2166 2167 2168### Udmf_FileConflictOptions 2169 2170``` 2171typedef enum Udmf_FileConflictOptionsUdmf_FileConflictOptions 2172``` 2173 2174**Description** 2175 2176Defines an enum for the options used to resolve file copy conflicts. 2177 2178**Since**: 15 2179 2180### Udmf_ProgressIndicator 2181 2182``` 2183typedef enum Udmf_ProgressIndicatorUdmf_ProgressIndicator 2184``` 2185 2186**Description** 2187 2188Defines an enum for progress indicator options. You can use the default progress indicator as required. 2189 2190**Since**: 15 2191 2192### OH_Udmf_ProgressInfo 2193 2194``` 2195typedef struct OH_Udmf_ProgressInfoOH_Udmf_ProgressInfo 2196``` 2197 2198**Description** 2199 2200Defines a struct for progress information. 2201 2202**Since**: 15 2203 2204### OH_UdmfGetDataParams 2205 2206``` 2207typedef struct OH_UdmfGetDataParamsOH_UdmfGetDataParams 2208``` 2209 2210**Description** 2211 2212Defines a struct for the parameters used to obtain UDMF data asynchronously. 2213 2214**Since**: 15 2215 2216### OH_Udmf_DataProgressListener 2217 2218``` 2219typedef void(* OH_Udmf_DataProgressListener) (OH_Udmf_ProgressInfo *progressInfo, OH_UdmfData *data) 2220``` 2221 2222**Description** 2223 2224Defines the callback used to return the data retrieval progress information and data obtained. 2225 2226A null pointer is returned if the progress is not 100. The data obtained is returned only when the progress reaches 100. 2227 2228**Since**: 15 2229 2230**Parameters** 2231 2232| Name| Description| 2233| -------- | -------- | 2234| progressInfo | Progress information obtained.| 2235| data | Data obtained.| 2236 2237 2238### OH_UdsContentForm 2239 2240``` 2241typedef struct OH_UdsContentForm OH_UdsContentForm 2242``` 2243 2244**Description** 2245 2246Defines a struct for the uniform data of the content widget type. 2247 2248**Since**: 14 2249 2250### OH_UdmfData 2251 2252``` 2253typedef struct OH_UdmfData OH_UdmfData 2254``` 2255 2256**Description** 2257 2258Defines a struct for a uniform data object. 2259 2260**Since**: 12 2261 2262 2263### OH_UdmfProperty 2264 2265``` 2266typedef struct OH_UdmfProperty OH_UdmfProperty 2267``` 2268 2269**Description** 2270 2271Defines a struct for a data record property in a uniform data object. 2272 2273**Since**: 12 2274 2275 2276### OH_UdmfRecord 2277 2278``` 2279typedef struct OH_UdmfRecord OH_UdmfRecord 2280``` 2281 2282**Description** 2283 2284Defines a struct for a data record in a uniform data object. 2285 2286**Since**: 12 2287 2288 2289### OH_UdmfRecordProvider 2290 2291``` 2292typedef struct OH_UdmfRecordProvider OH_UdmfRecordProvider 2293``` 2294 2295**Description** 2296 2297Represents the data record provider in a uniform data object. 2298 2299**Since**: 13 2300 2301 2302### OH_UdmfRecordProvider_GetData 2303 2304``` 2305typedef void*(* OH_UdmfRecordProvider_GetData) (void *context, const char *type) 2306``` 2307 2308**Description** 2309 2310Defines a callback function used to obtain data by type. This callback will be invoked to return the data obtained from **OH_UdmfRecord**. 2311 2312**Since**: 13 2313 2314**Parameters** 2315 2316| Name| Description| 2317| -------- | -------- | 2318| context | Pointer to the context set by [OH_UdmfRecordProvider_SetData](#oh_udmfrecordprovider_setdata).| 2319| type | Pointer to the type of the data to obtain. For details, see [udmf_meta.h](udmf__meta_8h.md).| 2320 2321**Returns** 2322 2323Uniform data obtained. 2324 2325 2326### OH_UdsAppItem 2327 2328``` 2329typedef struct OH_UdsAppItem OH_UdsAppItem 2330``` 2331 2332**Description** 2333 2334Defines a struct for the uniform data of the home screen icon type. 2335 2336**Since**: 12 2337 2338 2339### OH_UdsArrayBuffer 2340 2341``` 2342typedef struct OH_UdsArrayBuffer OH_UdsArrayBuffer 2343``` 2344 2345**Description** 2346 2347Defines a struct for the ArrayBuffer type. 2348 2349**Since**: 13 2350 2351 2352### OH_UdsFileUri 2353 2354``` 2355typedef struct OH_UdsFileUri OH_UdsFileUri 2356``` 2357 2358**Description** 2359 2360Defines a struct for the file URI type. 2361 2362**Since**: 13 2363 2364 2365### OH_UdsHtml 2366 2367``` 2368typedef struct OH_UdsHtml OH_UdsHtml 2369``` 2370 2371**Description** 2372 2373Defines a struct for the uniform data of the Hypertext Markup Language (HTML) type. 2374 2375**Since**: 12 2376 2377 2378### OH_UdsHyperlink 2379 2380``` 2381typedef struct OH_UdsHyperlink OH_UdsHyperlink 2382``` 2383 2384**Description** 2385 2386Defines a struct for the uniform data of the hyperlink type. 2387 2388**Since**: 12 2389 2390 2391### OH_UdsPixelMap 2392 2393``` 2394typedef struct OH_UdsPixelMap OH_UdsPixelMap 2395``` 2396 2397**Description** 2398 2399Defines a struct for the pixel map type. 2400 2401**Since**: 13 2402 2403 2404### OH_UdsPlainText 2405 2406``` 2407typedef struct OH_UdsPlainText OH_UdsPlainText 2408``` 2409 2410**Description** 2411 2412Defines a struct for the uniform data of the plaintext type. 2413 2414**Since**: 12 2415 2416 2417### OH_Utd 2418 2419``` 2420typedef struct OH_Utd OH_Utd 2421``` 2422 2423**Description** 2424 2425Defines a struct for a UTD. 2426 2427**Since**: 12 2428 2429 2430### Udmf_ErrCode 2431 2432``` 2433typedef enum Udmf_ErrCode Udmf_ErrCode 2434``` 2435 2436**Description** 2437 2438Defines an enum for error codes. 2439 2440**Since**: 12 2441 2442 2443### Udmf_Intention 2444 2445``` 2446typedef enum Udmf_Intention Udmf_Intention 2447``` 2448 2449**Description** 2450 2451Defines an enum for UDMF data channel types. 2452 2453**Since**: 12 2454 2455 2456### Udmf_ShareOption 2457 2458``` 2459typedef enum Udmf_ShareOption Udmf_ShareOption 2460``` 2461 2462**Description** 2463 2464Defines an enum for the scopes of the uniform data to be used on a device. 2465 2466**Since**: 12 2467 2468 2469### UdmfData_Finalize 2470 2471``` 2472typedef void(* UdmfData_Finalize) (void *context) 2473``` 2474 2475**Description** 2476 2477Defines a callback function used to release the context. This callback is invoked when the **OH_UdmfRecordProvider** instance is destroyed. 2478 2479**Since**: 13 2480 2481**Parameters** 2482 2483| Name| Description| 2484| -------- | -------- | 2485| context | Pointer to the context to release.| 2486 2487 2488## Enum Description 2489 2490### Udmf_ListenerStatus 2491 2492``` 2493enum Udmf_ListenerStatus 2494``` 2495 2496**Description** 2497 2498Enumerates the status codes returned when data is obtained asynchronously. 2499 2500**Since**: 15 2501 2502| Value| Description| 2503| -------- | -------- | 2504| UDMF_FINISHED | Data is obtained successfully.| 2505| UDMF_PROCESSING | The data retrieval task is being processed.| 2506| UDMF_CANCELED | The data retrieval task is canceled.| 2507| UDMF_INNER_ERROR | An internal error occurs.| 2508| UDMF_INVALID_PARAMETERS | Invalid parameters are detected.| 2509| UDMF_DATA_NOT_FOUND | No data is obtained.| 2510| UDMF_SYNC_FAILED | An error occurs during data synchronization.| 2511| UDMF_COPY_FILE_FAILED | Failed to copy the file.| 2512 2513### Udmf_FileConflictOptions 2514 2515``` 2516enum Udmf_FileConflictOptions 2517``` 2518 2519**Description** 2520 2521Enumerates the options used to resolve file copy conflicts. 2522 2523**Since**: 15 2524 2525| Value| Description| 2526| -------- | -------- | 2527| UDMF_OVERWRITE | Overwrite the file with the same name in the destination directory. This is the default value.| 2528| UDMF_SKIP | Skip the file if there is a file with the same name in the destination directory.| 2529 2530### Udmf_ProgressIndicator 2531 2532``` 2533enum Udmf_ProgressIndicator 2534``` 2535 2536**Description** 2537 2538Enumerates the progress indicator options. You can use the default progress indicator as required. 2539 2540**Since**: 15 2541 2542| Value| Description| 2543| -------- | -------- | 2544| UDMF_NONE | Do not use the default progress indicator.| 2545| UDMF_DEFAULT | Use the default progress indicator. If data is obtained within 500 ms, the default progress bar is not started.| 2546 2547### Udmf_ErrCode 2548 2549``` 2550enum Udmf_ErrCode 2551``` 2552 2553**Description** 2554 2555Enumerates the error codes. 2556 2557**Since**: 12 2558 2559| Value| Description| 2560| -------- | -------- | 2561| UDMF_E_OK | The operation is successful.| 2562| UDMF_ERR | Common error.| 2563| UDMF_E_INVALID_PARAM | Invalid parameter.| 2564 2565 2566### Udmf_Intention 2567 2568``` 2569enum Udmf_Intention 2570``` 2571 2572**Description** 2573 2574Enumerates the UDMF data channel types. 2575 2576**Since**: 12 2577 2578| Value| Description| 2579| -------- | -------- | 2580| UDMF_INTENTION_DRAG | Channel for dragging data.| 2581| UDMF_INTENTION_PASTEBOARD | Channel for clipboard data.| 2582 2583 2584### Udmf_ShareOption 2585 2586``` 2587enum Udmf_ShareOption 2588``` 2589 2590**Description** 2591 2592Enumerates the scopes of the uniform data to be used on a device. 2593 2594**Since**: 12 2595 2596| Value| Description| 2597| -------- | -------- | 2598| SHARE_OPTIONS_INVALID | Invalid use.| 2599| SHARE_OPTIONS_IN_APP | Use the uniform data only in the same application of a device.| 2600| SHARE_OPTIONS_CROSS_APP | Use the uniform data across applications of a device.| 2601 2602 2603## Function Description 2604 2605### OH_UdmfProgressInfo_GetProgress() 2606 2607``` 2608int OH_UdmfProgressInfo_GetProgress (OH_Udmf_ProgressInfo* progressInfo) 2609``` 2610 2611**Description** 2612 2613Obtains the progress information from [OH_Udmf_ProgressInfo](#oh_udmf_progressinfo). 2614 2615**Since**: 15 2616 2617**Parameters** 2618 2619| Name| Description| 2620| -------- | -------- | 2621| progressInfo | [OH_Udmf_ProgressInfo](#oh_udmf_progressinfo).| 2622 2623**Returns** 2624 2625Progress obtained, in percentage. 2626 2627**See** 2628 2629[OH_Udmf_ProgressInfo](#oh_udmf_progressinfo) 2630 2631### OH_UdmfProgressInfo_GetStatus() 2632 2633``` 2634int OH_UdmfProgressInfo_GetStatus (OH_Udmf_ProgressInfo* progressInfo) 2635``` 2636 2637**Description** 2638 2639Obtains the status information from [OH_Udmf_ProgressInfo](#oh_udmf_progressinfo). 2640 2641**Since**: 15 2642 2643**Parameters** 2644 2645| Name| Description| 2646| -------- | -------- | 2647| progressInfo | [OH_Udmf_ProgressInfo](#oh_udmf_progressinfo).| 2648 2649**Returns** 2650 2651Status information obtained. 2652 2653**See** 2654 2655[OH_Udmf_ProgressInfo](#oh_udmf_progressinfo) 2656 2657[Udmf_ListenerStatus](#udmf_listenerstatus) 2658 2659### OH_UdmfGetDataParams_Create() 2660 2661``` 2662OH_UdmfGetDataParams* OH_UdmfGetDataParams_Create () 2663``` 2664 2665### OH_UdmfGetDataParams_Destroy() 2666 2667``` 2668void OH_UdmfGetDataParams_Destroy (OH_UdmfGetDataParams* pThis) 2669``` 2670 2671**Description** 2672 2673Destroys an [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance. 2674 2675**Since**: 15 2676 2677**Parameters** 2678 2679| Name| Description| 2680| -------- | -------- | 2681| pThis | Pointer to the [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance to destroy.| 2682 2683**See** 2684 2685[OH_UdmfGetDataParams](#oh_udmfgetdataparams) 2686 2687 2688**Description** 2689 2690Creates an [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance for asynchronously obtaining UDMF data. 2691 2692If this pointer is no longer required, use [OH_UdmfGetDataParams_Destroy](#oh_udmfgetdataparams_destroy) to destroy it. Otherwise, memory leaks may occur. 2693 2694**Since**: 15 2695 2696**Returns** 2697 2698Returns a pointer to the [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance created if the operation is successful; returns **nullptr** otherwise. 2699 2700**See** 2701 2702[OH_UdmfGetDataParams](#oh_udmfgetdataparams) 2703 2704### OH_UdmfGetDataParams_SetDestUri() 2705 2706``` 2707void OH_UdmfGetDataParams_SetDestUri (OH_UdmfGetDataParams* params, const char* destUri ) 2708``` 2709 2710**Description** 2711 2712Sets the destination directory in an [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance. 2713 2714If the destination directory is set, data of the file type will be copied to the specified directory. The file type data obtained in the callback will be replaced with the URI of the destination directory. 2715 2716If the destination directory is not specified, the file will not be copied. The file type data obtained in the callback is the URI of the source directory. 2717 2718If the application involves complex file processing or files need to be copied to multiple directories, you are advised to leave this parameter unspecified and let the application to handle the file copy. 2719 2720**Since**: 15 2721 2722**Parameters** 2723 2724| Name| Description| 2725| -------- | -------- | 2726| params | Pointer to the target [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance.| 2727| destUri | Destination directory to set.| 2728 2729**See** 2730 2731[OH_UdmfGetDataParams](#oh_udmfgetdataparams) 2732 2733### OH_UdmfGetDataParams_SetFileConflictOptions() 2734 2735``` 2736void OH_UdmfGetDataParams_SetFileConflictOptions (OH_UdmfGetDataParams* params, const Udmf_FileConflictOptions options ) 2737``` 2738 2739**Description** 2740 2741Sets the policy for resolving file conflicts in an [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance. 2742 2743**Since**: 15 2744 2745**Parameters** 2746 2747| Name| Description| 2748| -------- | -------- | 2749| params | Pointer to the target [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance.| 2750| options | Policy to set.| 2751 2752**See** 2753 2754[OH_UdmfGetDataParams](#oh_udmfgetdataparams) 2755 2756[Udmf_FileConflictOptions](#udmf_fileconflictoptions) 2757 2758### OH_UdmfGetDataParams_SetProgressIndicator() 2759 2760``` 2761void OH_UdmfGetDataParams_SetProgressIndicator (OH_UdmfGetDataParams* params, const Udmf_ProgressIndicator progressIndicator ) 2762``` 2763 2764**Description** 2765 2766Sets the progress indicator in an [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance. 2767 2768**Since**: 15 2769 2770**Parameters** 2771 2772| Name| Description| 2773| -------- | -------- | 2774| params | Pointer to the target [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance.| 2775| progressIndicator | Whether to use the default progress indicator.| 2776 2777**See** 2778 2779[OH_UdmfGetDataParams](#oh_udmfgetdataparams) 2780 2781[Udmf_ProgressIndicator](#udmf_progressindicator) 2782 2783### OH_UdmfGetDataParams_SetDataProgressListener() 2784 2785``` 2786void OH_UdmfGetDataParams_SetDataProgressListener (OH_UdmfGetDataParams* params, const OH_Udmf_DataProgressListener dataProgressListener ) 2787``` 2788 2789**Description** 2790 2791Sets the callback used to return the data obtained in an [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance. 2792 2793**Since**: 15 2794 2795**Parameters** 2796 2797| Name| Description| 2798| -------- | -------- | 2799| params | Pointer to the target [OH_UdmfGetDataParams](#oh_udmfgetdataparams) instance.| 2800| dataProgressListener | Callback to set.| 2801 2802**See** 2803 2804[OH_UdmfGetDataParams](#oh_udmfgetdataparams) 2805 2806[OH_Udmf_DataProgressListener](#oh_udmf_dataprogresslistener) 2807 2808### OH_UdmfRecord_AddContentForm() 2809 2810``` 2811int OH_UdmfRecord_AddContentForm (OH_UdmfRecord* pThis, OH_UdsContentForm* contentForm ) 2812``` 2813 2814**Description** 2815 2816Adds data of the [OH_UdsContentForm](#oh_udscontentform) type to an [OH_UdmfRecord](#oh_udmfrecord) instance. 2817 2818**Since**: 14 2819 2820**Parameters** 2821 2822| Name| Description| 2823| -------- | -------- | 2824| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 2825| contentForm | Pointer to the [OH_UdsContentForm](#oh_udscontentform) instance to add.| 2826 2827**Returns** 2828 2829Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 2830 2831**See** 2832 2833[OH_UdmfRecord](#oh_udmfrecord) 2834 2835[OH_UdsContentForm](#oh_udscontentform) 2836 2837[Udmf_ErrCode](#udmf_errcode) 2838 2839 2840### OH_UdmfRecord_GetContentForm() 2841 2842``` 2843int OH_UdmfRecord_GetContentForm (OH_UdmfRecord* pThis, OH_UdsContentForm* contentForm ) 2844``` 2845 2846**Description** 2847 2848Obtains data of the [OH_UdsContentForm](#oh_udscontentform) type from an [OH_UdmfRecord](#oh_udmfrecord) instance. 2849 2850**Since**: 14 2851 2852**Parameters** 2853 2854| Name| Description| 2855| -------- | -------- | 2856| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 2857| contentForm | Pointer to the [OH_UdsContentForm](#oh_udscontentform) instance obtained.| 2858 2859**Returns** 2860 2861Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 2862 2863**See** 2864 2865[OH_UdmfRecord](#oh_udmfrecord) 2866 2867[OH_UdsContentForm](#oh_udscontentform) 2868 2869[Udmf_ErrCode](#udmf_errcode) 2870 2871 2872### OH_UdsContentForm_Create() 2873 2874``` 2875OH_UdsContentForm* OH_UdsContentForm_Create () 2876``` 2877 2878**Description** 2879 2880Creates an [OH_UdsContentForm](#oh_udscontentform) instance and a pointer to it. 2881 2882**Since**: 14 2883 2884**Returns** 2885 2886Returns a pointer to the [OH_UdsContentForm](#oh_udscontentform) instance created if the operation is successful; return **nullptr** otherwise. 2887 2888**See** 2889 2890[OH_UdsContentForm](#oh_udscontentform) 2891 2892 2893### OH_UdsContentForm_Destroy() 2894 2895``` 2896void OH_UdsContentForm_Destroy (OH_UdsContentForm* pThis) 2897``` 2898 2899**Description** 2900 2901Destroys an [OH_UdsContentForm](#oh_udscontentform) instance. 2902 2903**Since**: 14 2904 2905**Parameters** 2906 2907| Name| Description| 2908| -------- | -------- | 2909| pThis | Pointer to the [OH_UdsContentForm](#oh_udscontentform) instance to destroy.| 2910 2911**See** 2912 2913[OH_UdsContentForm](#oh_udscontentform) 2914 2915 2916### OH_UdsContentForm_GetAppIcon() 2917 2918``` 2919int OH_UdsContentForm_GetAppIcon (OH_UdsContentForm* pThis, unsigned char** appIcon, unsigned int* len ) 2920``` 2921 2922**Description** 2923 2924Obtains the application icon data from an [OH_UdsContentForm](#oh_udscontentform) instance. 2925 2926**Since**: 14 2927 2928**Parameters** 2929 2930| Name| Description| 2931| -------- | -------- | 2932| pThis | Pointer to the target [OH_UdsContentForm](#oh_udscontentform) instance.| 2933| appIcon | Double pointer to the binary application icon data obtained.| 2934| len | Pointer to the length of the binary application icon data obtained.| 2935 2936**Returns** 2937 2938Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. <br>Returns **UDMF_ERR** if an internal system error occurs. 2939 2940**See** 2941 2942[OH_UdsContentForm](#oh_udscontentform) 2943 2944[Udmf_ErrCode](#udmf_errcode) 2945 2946 2947### OH_UdsContentForm_GetAppName() 2948 2949``` 2950const char* OH_UdsContentForm_GetAppName (OH_UdsContentForm* pThis) 2951``` 2952 2953**Description** 2954 2955Obtains the application name from an [OH_UdsContentForm](#oh_udscontentform) instance. 2956 2957**Since**: 14 2958 2959**Parameters** 2960 2961| Name| Description| 2962| -------- | -------- | 2963| pThis | Pointer to the target [OH_UdsContentForm](#oh_udscontentform) instance.| 2964 2965**Returns** 2966 2967Returns the pointer to the application name obtained if the operation is successful; returns <b>nullptr</b> otherwise. 2968 2969**See** 2970 2971[OH_UdsContentForm](#oh_udscontentform) 2972 2973 2974### OH_UdsContentForm_GetDescription() 2975 2976``` 2977const char* OH_UdsContentForm_GetDescription (OH_UdsContentForm* pThis) 2978``` 2979 2980**Description** 2981 2982Obtains the description from an [OH_UdsContentForm](#oh_udscontentform) instance. 2983 2984**Since**: 14 2985 2986**Parameters** 2987 2988| Name| Description| 2989| -------- | -------- | 2990| pThis | Pointer to the target [OH_UdsContentForm](#oh_udscontentform) instance.| 2991 2992**Returns** 2993 2994Returns the pointer to the description string obtained if the operation is successful; returns **nullptr** otherwise. 2995 2996**See** 2997 2998[OH_UdsContentForm](#oh_udscontentform) 2999 3000 3001### OH_UdsContentForm_GetLinkUri() 3002 3003``` 3004const char* OH_UdsContentForm_GetLinkUri (OH_UdsContentForm* pThis) 3005``` 3006 3007**Description** 3008 3009Obtains the hyperlink information from an [OH_UdsContentForm](#oh_udscontentform) instance. 3010 3011**Since**: 14 3012 3013**Parameters** 3014 3015| Name| Description| 3016| -------- | -------- | 3017| pThis | Pointer to the target [OH_UdsContentForm](#oh_udscontentform) instance.| 3018 3019**Returns** 3020 3021Returns the pointer to the hyperlink obtained if the operation is successful; returns <b>nullptr</b> otherwise. 3022 3023**See** 3024 3025[OH_UdsContentForm](#oh_udscontentform) 3026 3027 3028### OH_UdsContentForm_GetThumbData() 3029 3030``` 3031int OH_UdsContentForm_GetThumbData (OH_UdsContentForm* pThis, unsigned char** thumbData, unsigned int* len ) 3032``` 3033 3034**Description** 3035 3036Obtains image data from an [OH_UdsContentForm](#oh_udscontentform) instance. 3037 3038**Since**: 14 3039 3040**Parameters** 3041 3042| Name| Description| 3043| -------- | -------- | 3044| pThis | Pointer to the target [OH_UdsContentForm](#oh_udscontentform) instance.| 3045| thumbData | Double pointer to the binary image data obtained.| 3046| len | Pointer to the length of the binary image data obtained.| 3047 3048**Returns** 3049 3050Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. <br>Returns **UDMF_ERR** if an internal system error occurs. 3051 3052**See** 3053 3054[OH_UdsContentForm](#oh_udscontentform) 3055 3056[Udmf_ErrCode](#udmf_errcode) 3057 3058 3059### OH_UdsContentForm_GetTitle() 3060 3061``` 3062const char* OH_UdsContentForm_GetTitle (OH_UdsContentForm* pThis) 3063``` 3064 3065**Description** 3066 3067Obtains the title from an [OH_UdsContentForm](#oh_udscontentform) instance. 3068 3069**Since**: 14 3070 3071**Parameters** 3072 3073| Name| Description| 3074| -------- | -------- | 3075| pThis | Pointer to the target [OH_UdsContentForm](#oh_udscontentform) instance.| 3076 3077**Returns** 3078 3079Returns the pointer to the title string obtained if the operation is successful; returns **nullptr** otherwise. 3080 3081**See** 3082 3083[OH_UdsContentForm](#oh_udscontentform) 3084 3085 3086### OH_UdsContentForm_GetType() 3087 3088``` 3089const char* OH_UdsContentForm_GetType (OH_UdsContentForm* pThis) 3090``` 3091 3092**Description** 3093 3094Obtains the type ID from an [OH_UdsContentForm](#oh_udscontentform) instance. 3095 3096**Since**: 14 3097 3098**Parameters** 3099 3100| Name| Description| 3101| -------- | -------- | 3102| pThis | Pointer to the target [OH_UdsContentForm](#oh_udscontentform) instance.| 3103 3104**Returns** 3105 3106Returns a pointer to the type ID obtained if the operation is successful; returns **nullptr** otherwise. 3107 3108**See** 3109 3110[OH_UdsContentForm](#oh_udscontentform) 3111 3112 3113### OH_UdsContentForm_SetAppIcon() 3114 3115``` 3116int OH_UdsContentForm_SetAppIcon (OH_UdsContentForm* pThis, const unsigned char* appIcon, unsigned int len ) 3117``` 3118 3119**Description** 3120 3121Sets the application icon data for an [OH_UdsContentForm](#oh_udscontentform) instance. 3122 3123**Since**: 14 3124 3125**Parameters** 3126 3127| Name| Description| 3128| -------- | -------- | 3129| pThis | Pointer to the target [OH_UdsContentForm](#oh_udscontentform) instance.| 3130| appIcon | Pointer to the binary application icon data to set.| 3131| len | Length of the binary application icon data to set.| 3132 3133**Returns** 3134 3135Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3136 3137**See** 3138 3139[OH_UdsContentForm](#oh_udscontentform) 3140 3141[Udmf_ErrCode](#udmf_errcode) 3142 3143 3144### OH_UdsContentForm_SetAppName() 3145 3146``` 3147int OH_UdsContentForm_SetAppName (OH_UdsContentForm* pThis, const char* appName ) 3148``` 3149 3150**Description** 3151 3152Sets the application name for an [OH_UdsContentForm](#oh_udscontentform) instance. 3153 3154**Since**: 14 3155 3156**Parameters** 3157 3158| Name| Description| 3159| -------- | -------- | 3160| pThis | Pointer to the target [OH_UdsContentForm](#oh_udscontentform) instance.| 3161| appName | Pointer to the application name to set.| 3162 3163**Returns** 3164 3165Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3166 3167**See** 3168 3169[OH_UdsContentForm](#oh_udscontentform) 3170 3171[Udmf_ErrCode](#udmf_errcode) 3172 3173 3174### OH_UdsContentForm_SetDescription() 3175 3176``` 3177int OH_UdsContentForm_SetDescription (OH_UdsContentForm* pThis, const char* description ) 3178``` 3179 3180**Description** 3181 3182Sets the description for an [OH_UdsContentForm](#oh_udscontentform) instance. 3183 3184**Since**: 14 3185 3186**Parameters** 3187 3188| Name| Description| 3189| -------- | -------- | 3190| pThis | Pointer to the target [OH_UdsContentForm](#oh_udscontentform) instance.| 3191| description | Pointer to the description to set.| 3192 3193**Returns** 3194 3195Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3196 3197**See** 3198 3199[OH_UdsContentForm](#oh_udscontentform) 3200 3201[Udmf_ErrCode](#udmf_errcode) 3202 3203 3204### OH_UdsContentForm_SetLinkUri() 3205 3206``` 3207int OH_UdsContentForm_SetLinkUri (OH_UdsContentForm* pThis, const char* linkUri ) 3208``` 3209 3210**Description** 3211 3212Sets the hyperlink data for an [OH_UdsContentForm](#oh_udscontentform) instance. 3213 3214**Since**: 14 3215 3216**Parameters** 3217 3218| Name| Description| 3219| -------- | -------- | 3220| pThis | Pointer to the target [OH_UdsContentForm](#oh_udscontentform) instance.| 3221| linkUri | Pointer to the hyperlink to set.| 3222 3223**Returns** 3224 3225Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3226 3227**See** 3228 3229[OH_UdsContentForm](#oh_udscontentform) 3230 3231[Udmf_ErrCode](#udmf_errcode) 3232 3233 3234### OH_UdsContentForm_SetThumbData() 3235 3236``` 3237int OH_UdsContentForm_SetThumbData (OH_UdsContentForm* pThis, const unsigned char* thumbData, unsigned int len ) 3238``` 3239 3240**Description** 3241 3242Sets the image data for an [OH_UdsContentForm](#oh_udscontentform) instance. 3243 3244**Since**: 14 3245 3246**Parameters** 3247 3248| Name| Description| 3249| -------- | -------- | 3250| pThis | Pointer to the target [OH_UdsContentForm](#oh_udscontentform) instance.| 3251| thumbData | Pointer to the binary image data to set.| 3252| len | Length of the binary image data to set.| 3253 3254**Returns** 3255 3256Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3257 3258**See** 3259 3260[OH_UdsContentForm](#oh_udscontentform) 3261 3262[Udmf_ErrCode](#udmf_errcode) 3263 3264 3265### OH_UdsContentForm_SetTitle() 3266 3267``` 3268int OH_UdsContentForm_SetTitle (OH_UdsContentForm* pThis, const char* title ) 3269``` 3270 3271**Description** 3272 3273Sets the title for an [OH_UdsContentForm](#oh_udscontentform) instance. 3274 3275**Since**: 14 3276 3277**Parameters** 3278 3279| Name| Description| 3280| -------- | -------- | 3281| pThis | Pointer to the target [OH_UdsContentForm](#oh_udscontentform) instance.| 3282| title | Pointer to the title to set.| 3283 3284**Returns** 3285 3286Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3287 3288**See** 3289 3290[OH_UdsContentForm](#oh_udscontentform) 3291 3292[Udmf_ErrCode](#udmf_errcode) 3293 3294 3295### OH_Udmf_GetUnifiedData() 3296 3297``` 3298int OH_Udmf_GetUnifiedData (const char* key, Udmf_Intention intention, OH_UdmfData* unifiedData ) 3299``` 3300 3301**Description** 3302 3303Obtains an [OH_UdmfData](#oh_udmfdata) instance from the UDMF database. 3304 3305**Since**: 12 3306 3307**Parameters** 3308 3309| Name| Description| 3310| -------- | -------- | 3311| key | Pointer to the identifier of the data in the database.| 3312| intention | Type of the data channel. For details, see [Udmf_Intent]( #udmf_intention).| 3313| unifiedData | Pointer to the [OH_UdmfData](#oh_udmfdata) obtained.| 3314 3315**Returns** 3316 3317Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3318 3319**See** 3320 3321[OH_UdmfProperty](#oh_udmfproperty) 3322 3323[Udmf_Intention](#udmf_intention) 3324 3325[Udmf_ErrCode](#udmf_errcode) 3326 3327 3328### OH_Udmf_SetUnifiedData() 3329 3330``` 3331int OH_Udmf_SetUnifiedData (Udmf_Intention intention, OH_UdmfData* unifiedData, char* key, unsigned int keyLen ) 3332``` 3333 3334**Description** 3335 3336Sets an [OH_UdmfData](#oh_udmfdata) instance in the UDMF database. 3337 3338**Since**: 12 3339 3340**Parameters** 3341 3342| Name| Description| 3343| -------- | -------- | 3344| intention | Type of the data channel. For details, see [Udmf_Intent]( #udmf_intention).| 3345| unifiedData | Pointer to the [OH_UdmfData](#oh_udmfdata) data to set.| 3346| key | Pointer to the key that uniquely identifies the data in the database.| 3347| keyLen | Length of the key. The memory size must be greater than or equal to 512 bytes.| 3348 3349**Returns** 3350 3351Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3352 3353**See** 3354 3355[OH_UdmfProperty](#oh_udmfproperty) 3356 3357[Udmf_Intention](#udmf_intention) 3358 3359[Udmf_ErrCode](#udmf_errcode) 3360 3361 3362### OH_UdmfData_AddRecord() 3363 3364``` 3365int OH_UdmfData_AddRecord (OH_UdmfData* pThis, OH_UdmfRecord* record ) 3366``` 3367 3368**Description** 3369 3370Adds an [OH_UdmfRecord](#oh_udmfrecord) to an [OH_UdmfData](#oh_udmfdata) instance. 3371 3372**Since**: 12 3373 3374**Parameters** 3375 3376| Name| Description| 3377| -------- | -------- | 3378| pThis | Pointer to the [OH_UdmfData](#oh_udmfdata) instance.| 3379| record | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 3380 3381**Returns** 3382 3383Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3384 3385**See** 3386 3387[OH_UdmfData](#oh_udmfdata) 3388 3389[Udmf_ErrCode](#udmf_errcode) 3390 3391 3392### OH_UdmfData_Create() 3393 3394``` 3395OH_UdmfData* OH_UdmfData_Create () 3396``` 3397 3398**Description** 3399 3400Creates an [OH_UdmfData](#oh_udmfdata) instance and a pointer to it. If this pointer is no longer required, use [OH_UdmfData_Destroy](#oh_udmfdata_destroy) to destroy it. Otherwise, memory leaks may occur. 3401 3402**Since**: 12 3403 3404**Returns** 3405 3406Returns a pointer to the [OH_UdmfData](#oh_udmfdata) instance created if the operation is successful; returns **nullptr** otherwise. 3407 3408**See** 3409 3410[OH_UdmfData](#oh_udmfdata) 3411 3412 3413### OH_UdmfData_Destroy() 3414 3415``` 3416void OH_UdmfData_Destroy (OH_UdmfData* pThis) 3417``` 3418 3419**Description** 3420 3421Destroys an [OH_UdmfData](#oh_udmfdata) instance. 3422 3423**Since**: 12 3424 3425**Parameters** 3426 3427| Name| Description| 3428| -------- | -------- | 3429| pThis | Pointer to the [OH_UdmfData](#oh_udmfdata) instance to destroy.| 3430 3431**See** 3432 3433[OH_UdmfData](#oh_udmfdata) 3434 3435 3436### OH_UdmfData_GetPrimaryHtml() 3437 3438``` 3439int OH_UdmfData_GetPrimaryHtml (OH_UdmfData* data, OH_UdsHtml* html ) 3440``` 3441 3442**Description** 3443 3444Obtains the first [OH_UdsHtml](#oh_udshtml) data from an [OH_UdmfData](#oh_udmfdata) instance. 3445 3446**Since**: 13 3447 3448**Parameters** 3449 3450| Name| Description| 3451| -------- | -------- | 3452| data | Pointer to the [OH_UdmfData](#oh_udmfdata) instance.| 3453| html | Pointer to the [OH_UdsHtml](#oh_udshtml) data obtained.| 3454 3455**Returns** 3456 3457Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3458 3459**See** 3460 3461[OH_UdmfData](#oh_udmfdata) 3462 3463[OH_UdsHtml](#oh_udshtml) 3464 3465[Udmf_ErrCode](#udmf_errcode) 3466 3467 3468### OH_UdmfData_GetPrimaryPlainText() 3469 3470``` 3471int OH_UdmfData_GetPrimaryPlainText (OH_UdmfData* data, OH_UdsPlainText* plainText ) 3472``` 3473 3474**Description** 3475 3476Obtains the first [OH_UdsPlainText](#oh_udsplaintext) data from an [OH_UdmfData](#oh_udmfdata) instance. 3477 3478**Since**: 13 3479 3480**Parameters** 3481 3482| Name| Description| 3483| -------- | -------- | 3484| data | Pointer to the [OH_UdmfData](#oh_udmfdata) instance.| 3485| plainText | Pointer to the [OH_UdsPlainText](#oh_udsplaintext) data obtained.| 3486 3487**Returns** 3488 3489Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3490 3491**See** 3492 3493[OH_UdmfData](#oh_udmfdata) 3494 3495[OH_UdsPlainText](#oh_udsplaintext) 3496 3497[Udmf_ErrCode](#udmf_errcode) 3498 3499 3500### OH_UdmfData_GetRecord() 3501 3502``` 3503OH_UdmfRecord* OH_UdmfData_GetRecord (OH_UdmfData* data, unsigned int index ) 3504``` 3505 3506**Description** 3507 3508Obtains the specified data record from an [OH_UdmfData](#oh_udmfdata) instance. 3509 3510**Since**: 13 3511 3512**Parameters** 3513 3514| Name| Description| 3515| -------- | -------- | 3516| data | Pointer to the [OH_UdmfData](#oh_udmfdata) instance.| 3517| index | Index of the [OH_UdmfRecord]( #oh_udmfrecord) in the OH_UdmfData]( #oh_udmfdata) instance.| 3518 3519**Returns** 3520 3521Returns a pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance obtained if the operation is successful; returns **nullptr** otherwise. 3522 3523**See** 3524 3525[OH_UdmfData](#oh_udmfdata) 3526 3527 3528### OH_UdmfData_GetRecordCount() 3529 3530``` 3531int OH_UdmfData_GetRecordCount (OH_UdmfData* data) 3532``` 3533 3534**Description** 3535 3536Obtains the number of data records contained in an [OH_UdmfData](#oh_udmfdata) instance. 3537 3538**Parameters** 3539 3540| Name| Description| 3541| -------- | -------- | 3542| data | Pointer to the target [OH_UdmfData](#oh_udmfdata) instance. | 3543 3544 3545### OH_UdmfData_GetRecords() 3546 3547``` 3548OH_UdmfRecord** OH_UdmfData_GetRecords (OH_UdmfData* pThis, unsigned int* count ) 3549``` 3550 3551**Description** 3552 3553Obtains all records contained in an [OH_UdmfData](#oh_udmfdata) instance. 3554 3555**Since**: 12 3556 3557**Parameters** 3558 3559| Name| Description| 3560| -------- | -------- | 3561| pThis | Pointer to the target [OH_UdmfData](#oh_udmfdata) instance.| 3562| count | Pointer to the number of records obtained.| 3563 3564**Returns** 3565 3566Returns [OH_UdmfRecord](#oh_udmfrecord) obtained if the operation is successful; returns **nullptr** otherwise. 3567 3568**See** 3569 3570[OH_UdmfData](#oh_udmfdata) 3571 3572[OH_UdmfRecord](#oh_udmfrecord) 3573 3574 3575### OH_UdmfData_GetTypes() 3576 3577``` 3578char** OH_UdmfData_GetTypes (OH_UdmfData* pThis, unsigned int* count ) 3579``` 3580 3581**Description** 3582 3583Obtains all data types in an [OH_UdmfData](#oh_udmfdata) instance. 3584 3585**Since**: 12 3586 3587**Parameters** 3588 3589| Name| Description| 3590| -------- | -------- | 3591| pThis | Pointer to the target [OH_UdmfData](#oh_udmfdata) instance.| 3592| count | Pointer to the number of data types obtained.| 3593 3594**Returns** 3595 3596Returns the data types obtained if the operation is successful; returns **nullptr** otherwise. 3597 3598**See** 3599 3600[OH_UdmfData](#oh_udmfdata) 3601 3602 3603### OH_UdmfData_HasType() 3604 3605``` 3606bool OH_UdmfData_HasType (OH_UdmfData* pThis, const char* type ) 3607``` 3608 3609**Description** 3610 3611Checks whether the specified type exists in an [OH_UdmfData](#oh_udmfdata) instance. 3612 3613**Since**: 12 3614 3615**Parameters** 3616 3617| Name| Description| 3618| -------- | -------- | 3619| pThis | Pointer to the target [OH_UdmfData](#oh_udmfdata) instance.| 3620| type | Pointer to the type to check.| 3621 3622**Returns** 3623 3624Returns **true** if the data type exists; returns **false** otherwise. 3625 3626**See** 3627 3628[OH_UdmfData](#oh_udmfdata) 3629 3630 3631### OH_UdmfData_IsLocal() 3632 3633``` 3634bool OH_UdmfData_IsLocal (OH_UdmfData* data) 3635``` 3636 3637**Description** 3638 3639Checks whether an [OH_UdmfData](#oh_udmfdata) instance is from the local device. 3640 3641**Since**: 13 3642 3643**Parameters** 3644 3645| Name| Description| 3646| -------- | -------- | 3647| data | Pointer to the [OH_UdmfData](#oh_udmfdata) instance.| 3648 3649**Returns** 3650 3651Returns **true** if the data is from the local device; returns **false** otherwise. 3652 3653**See** 3654 3655[OH_UdmfData](#oh_udmfdata) 3656 3657 3658### OH_UdmfProperty_Create() 3659 3660``` 3661OH_UdmfProperty* OH_UdmfProperty_Create (OH_UdmfData* unifiedData) 3662``` 3663 3664**Description** 3665 3666Creates an [OH_UdmfProperty](#oh_udmfproperty) instance and a pointer to it. If this pointer is no longer required, use [OH_UdmfProperty_Destroy](#oh_udmfproperty_destroy) to destroy it. Otherwise, memory leaks may occur. 3667 3668**Since**: 12 3669 3670**Parameters** 3671 3672| Name| Description| 3673| -------- | -------- | 3674| unifiedData | Pointer to the [OH_UdmfData](#oh_udmfdata) instance.| 3675 3676**Returns** 3677 3678Returns a pointer to the [OH_UdmfProperty](#oh_udmfproperty) instance created if the operation is successful; returns **nullptr** otherwise. 3679 3680**See** 3681 3682[OH_UdmfData](#oh_udmfdata) 3683 3684[OH_UdmfProperty](#oh_udmfproperty) 3685 3686 3687### OH_UdmfProperty_Destroy() 3688 3689``` 3690void OH_UdmfProperty_Destroy (OH_UdmfProperty* pThis) 3691``` 3692 3693**Description** 3694 3695Destroys an [OH_UdmfProperty](#oh_udmfproperty) instance. 3696 3697**Since**: 12 3698 3699**Parameters** 3700 3701| Name| Description| 3702| -------- | -------- | 3703| pThis | Pointer to the [OH_UdmfProperty](#oh_udmfproperty) instance to destroy.| 3704 3705**See** 3706 3707[OH_UdmfProperty](#oh_udmfproperty) 3708 3709 3710### OH_UdmfProperty_GetExtrasIntParam() 3711 3712``` 3713int OH_UdmfProperty_GetExtrasIntParam (OH_UdmfProperty* pThis, const char* key, int defaultValue ) 3714``` 3715 3716**Description** 3717 3718Obtains the customized extra integer parameter from an [OH_UdmfProperty](#oh_udmfproperty) instance. 3719 3720**Since**: 12 3721 3722**Parameters** 3723 3724| Name| Description| 3725| -------- | -------- | 3726| pThis | Pointer to the [OH_UdmfProperty](#oh_udmfproperty) instance.| 3727| key | Pointer to the key of the parameter to obtain.| 3728| defaultValue | Default value to be returned if the parameter fails to be obtained.| 3729 3730**Returns** 3731 3732Returns the integer value obtained if the operation is successful; returns **defaultValue** if the operation fails. 3733 3734**See** 3735 3736[OH_UdmfProperty](#oh_udmfproperty) 3737 3738 3739### OH_UdmfProperty_GetExtrasStringParam() 3740 3741``` 3742const char* OH_UdmfProperty_GetExtrasStringParam (OH_UdmfProperty* pThis, const char* key ) 3743``` 3744 3745**Description** 3746 3747Obtains the customized extra string parameter from an [OH_UdmfProperty](#oh_udmfproperty) instance. 3748 3749**Since**: 12 3750 3751**Parameters** 3752 3753| Name| Description| 3754| -------- | -------- | 3755| pThis | Pointer to the [OH_UdmfProperty](#oh_udmfproperty) instance.| 3756| key | Pointer to the key of the parameter to obtain.| 3757 3758**Returns** 3759 3760Returns a pointer to the string value obtained if the operation is successful; returns **nullptr** otherwise. 3761 3762**See** 3763 3764[OH_UdmfProperty](#oh_udmfproperty) 3765 3766 3767### OH_UdmfProperty_GetShareOption() 3768 3769``` 3770Udmf_ShareOption OH_UdmfProperty_GetShareOption (OH_UdmfProperty* pThis) 3771``` 3772 3773**Description** 3774 3775Obtains the share option from an [OH_UdmfProperty](#oh_udmfproperty) instance. 3776 3777**Since**: 12 3778 3779**Parameters** 3780 3781| Name| Description| 3782| -------- | -------- | 3783| pThis | Pointer to the [OH_UdmfProperty](#oh_udmfproperty) instance.| 3784 3785**Returns** 3786 3787Returns the [Udmf_ShareOption](#udmf_shareoption) obtained. 3788 3789**See** 3790 3791[OH_UdmfProperty](#oh_udmfproperty) 3792 3793[Udmf_ShareOption](#udmf_shareoption) 3794 3795 3796### OH_UdmfProperty_GetTag() 3797 3798``` 3799const char* OH_UdmfProperty_GetTag (OH_UdmfProperty* pThis) 3800``` 3801 3802**Description** 3803 3804Obtains the custom tag value from an [OH_UdmfProperty](#oh_udmfproperty) instance. 3805 3806**Since**: 12 3807 3808**Parameters** 3809 3810| Name| Description| 3811| -------- | -------- | 3812| pThis | Pointer to the [OH_UdmfProperty](#oh_udmfproperty) instance.| 3813 3814**Returns** 3815 3816Returns a pointer to the custom tag value obtained if the operation is successful; returns **nullptr** otherwise. 3817 3818**See** 3819 3820[OH_UdmfProperty](#oh_udmfproperty) 3821 3822 3823### OH_UdmfProperty_GetTimestamp() 3824 3825``` 3826int64_t OH_UdmfProperty_GetTimestamp (OH_UdmfProperty* pThis) 3827``` 3828 3829**Description** 3830 3831Obtains the timestamp from an [OH_UdmfProperty](#oh_udmfproperty) instance. 3832 3833**Since**: 12 3834 3835**Parameters** 3836 3837| Name| Description| 3838| -------- | -------- | 3839| pThis | Pointer to the [OH_UdmfProperty](#oh_udmfproperty) instance.| 3840 3841**Returns** 3842 3843Returns the timestamp obtained. 3844 3845**See** 3846 3847[OH_UdmfProperty](#oh_udmfproperty) 3848 3849 3850### OH_UdmfProperty_SetExtrasIntParam() 3851 3852``` 3853int OH_UdmfProperty_SetExtrasIntParam (OH_UdmfProperty* pThis, const char* key, int param ) 3854``` 3855 3856**Description** 3857 3858Sets the extra integer parameter for an [OH_UdmfProperty](#oh_udmfproperty) instance. 3859 3860**Since**: 12 3861 3862**Parameters** 3863 3864| Name| Description| 3865| -------- | -------- | 3866| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 3867| key | Pointer to the key of the parameter to set.| 3868| param | Parameter value to set.| 3869 3870**Returns** 3871 3872Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3873 3874**See** 3875 3876[OH_UdmfProperty](#oh_udmfproperty) 3877 3878[Udmf_ErrCode](#udmf_errcode) 3879 3880 3881### OH_UdmfProperty_SetExtrasStringParam() 3882 3883``` 3884int OH_UdmfProperty_SetExtrasStringParam (OH_UdmfProperty* pThis, const char* key, const char* param ) 3885``` 3886 3887**Description** 3888 3889Sets the extra string parameter for an [OH_UdmfProperty](#oh_udmfproperty) instance. 3890 3891**Since**: 12 3892 3893**Parameters** 3894 3895| Name| Description| 3896| -------- | -------- | 3897| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 3898| key | Pointer to the key of the parameter to set.| 3899| param | Parameter value to set.| 3900 3901**Returns** 3902 3903Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3904 3905**See** 3906 3907[OH_UdmfProperty](#oh_udmfproperty) 3908 3909[Udmf_ErrCode](#udmf_errcode) 3910 3911 3912### OH_UdmfProperty_SetShareOption() 3913 3914``` 3915int OH_UdmfProperty_SetShareOption (OH_UdmfProperty* pThis, Udmf_ShareOption option ) 3916``` 3917 3918**Description** 3919 3920Sets the share option for an [OH_UdmfProperty](#oh_udmfproperty) instance. 3921 3922**Since**: 12 3923 3924**Parameters** 3925 3926| Name| Description| 3927| -------- | -------- | 3928| pThis | Pointer to the [OH_UdmfProperty](#oh_udmfproperty) instance.| 3929| option | [Udmf_ShareOption](#udmf_shareoption) to set.| 3930 3931**Returns** 3932 3933Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3934 3935**See** 3936 3937[OH_UdmfProperty](#oh_udmfproperty) 3938 3939[Udmf_ShareOption](#udmf_shareoption) 3940 3941[Udmf_ErrCode](#udmf_errcode) 3942 3943 3944### OH_UdmfProperty_SetTag() 3945 3946``` 3947int OH_UdmfProperty_SetTag (OH_UdmfProperty* pThis, const char* tag ) 3948``` 3949 3950**Description** 3951 3952Sets the tag value for an [OH_UdmfProperty](#oh_udmfproperty) instance. 3953 3954**Since**: 12 3955 3956**Parameters** 3957 3958| Name| Description| 3959| -------- | -------- | 3960| pThis | Pointer to the [OH_UdmfProperty](#oh_udmfproperty) instance.| 3961| tag | Pointer to the tag value to set.| 3962 3963**Returns** 3964 3965Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3966 3967**See** 3968 3969[OH_UdmfProperty](#oh_udmfproperty) 3970 3971[Udmf_ErrCode](#udmf_errcode) 3972 3973 3974### OH_UdmfRecord_AddAppItem() 3975 3976``` 3977int OH_UdmfRecord_AddAppItem (OH_UdmfRecord* pThis, OH_UdsAppItem* appItem ) 3978``` 3979 3980**Description** 3981 3982Adds data of the [OH_UdsAppItem](#oh_udsappitem) type to an [OH_UdmfRecord](#oh_udmfrecord) instance. 3983 3984**Since**: 12 3985 3986**Parameters** 3987 3988| Name| Description| 3989| -------- | -------- | 3990| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 3991| appItem | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance to add.| 3992 3993**Returns** 3994 3995Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 3996 3997**See** 3998 3999[OH_UdmfRecord](#oh_udmfrecord) 4000 4001[OH_UdsAppItem](#oh_udsappitem) 4002 4003[Udmf_ErrCode](#udmf_errcode) 4004 4005 4006### OH_UdmfRecord_AddArrayBuffer() 4007 4008``` 4009int OH_UdmfRecord_AddArrayBuffer (OH_UdmfRecord* record, const char* type, OH_UdsArrayBuffer* buffer ) 4010``` 4011 4012**Description** 4013 4014Adds a data record of the [OH_UdsArrayBuffer](#oh_udsarraybuffer) type to an [OH_UdmfRecord](#oh_udmfrecord) instance. 4015 4016**Since**: 13 4017 4018**Parameters** 4019 4020| Name| Description| 4021| -------- | -------- | 4022| record | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4023| type | Pointer to the ArrayBuffer type ID, which must be unique.| 4024| buffer | Pointer to the [OH_UdsArrayBuffer]( #oh_udsarraybuffer) instance.| 4025 4026**Returns** 4027 4028Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4029 4030**See** 4031 4032[OH_UdmfRecord](#oh_udmfrecord) 4033 4034[OH_UdsArrayBuffer](#oh_udsarraybuffer) 4035 4036[Udmf_ErrCode](#udmf_errcode) 4037 4038 4039### OH_UdmfRecord_AddFileUri() 4040 4041``` 4042int OH_UdmfRecord_AddFileUri (OH_UdmfRecord* pThis, OH_UdsFileUri* fileUri ) 4043``` 4044 4045**Description** 4046 4047Adds a data record of the [OH_UdsFileUri](#oh_udsfileuri) type to an [OH_UdmfRecord](#oh_udmfrecord) instance. 4048 4049**Since**: 13 4050 4051**Parameters** 4052 4053| Name| Description| 4054| -------- | -------- | 4055| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4056| fileUri | Pointer to the [OH_UdsFileUri]( #oh_udsfileuri) instance.| 4057 4058**Returns** 4059 4060Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4061 4062**See** 4063 4064[OH_UdmfRecord](#oh_udmfrecord) 4065 4066[OH_UdsFileUri](#oh_udsfileuri) 4067 4068[Udmf_ErrCode](#udmf_errcode) 4069 4070 4071### OH_UdmfRecord_AddGeneralEntry() 4072 4073``` 4074int OH_UdmfRecord_AddGeneralEntry (OH_UdmfRecord* pThis, const char* typeId, unsigned char* entry, unsigned int count ) 4075``` 4076 4077**Description** 4078 4079Adds customized uniform data to an [OH_UdmfRecord](#oh_udmfrecord) instance. 4080 4081**Since**: 12 4082 4083**Parameters** 4084 4085| Name| Description| 4086| -------- | -------- | 4087| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4088| typeId | Pointer to the data type ID.| 4089| entry | Pointer to the customized data to add.| 4090| count | Size of customized data to add. The data size cannot exceed 4 KB.| 4091 4092**Returns** 4093 4094Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4095 4096**See** 4097 4098[OH_UdmfRecord](#oh_udmfrecord) 4099 4100[Udmf_ErrCode](#udmf_errcode) 4101 4102 4103### OH_UdmfRecord_AddHtml() 4104 4105``` 4106int OH_UdmfRecord_AddHtml (OH_UdmfRecord* pThis, OH_UdsHtml* html ) 4107``` 4108 4109**Description** 4110 4111Adds data of the [OH_UdsHtml](#oh_udshtml) type to an [OH_UdmfRecord](#oh_udmfrecord) instance. 4112 4113**Since**: 12 4114 4115**Parameters** 4116 4117| Name| Description| 4118| -------- | -------- | 4119| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4120| html | Pointer to the [OH_UdsHtml](#oh_udshtml) instance to add.| 4121 4122**Returns** 4123 4124Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4125 4126**See** 4127 4128[OH_UdmfRecord](#oh_udmfrecord) 4129 4130[OH_UdsHtml](#oh_udshtml) 4131 4132[Udmf_ErrCode](#udmf_errcode) 4133 4134 4135### OH_UdmfRecord_AddHyperlink() 4136 4137``` 4138int OH_UdmfRecord_AddHyperlink (OH_UdmfRecord* pThis, OH_UdsHyperlink* hyperlink ) 4139``` 4140 4141**Description** 4142 4143Adds data of the hyperlink type [OH_UdsHyperlink](#oh_udshyperlink) type to an [OH_UdmfRecord](#oh_udmfrecord) instance. 4144 4145**Since**: 12 4146 4147**Parameters** 4148 4149| Name| Description| 4150| -------- | -------- | 4151| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4152| hyperlink | Pointer to the [OH_UdsHyperlink](#oh_udshyperlink) instance to add.| 4153 4154**Returns** 4155 4156Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4157 4158**See** 4159 4160[OH_UdmfRecord](#oh_udmfrecord) 4161 4162[OH_UdsHyperlink](#oh_udshyperlink) 4163 4164[Udmf_ErrCode](#udmf_errcode) 4165 4166 4167### OH_UdmfRecord_AddPixelMap() 4168 4169``` 4170int OH_UdmfRecord_AddPixelMap (OH_UdmfRecord* pThis, OH_UdsPixelMap* pixelMap ) 4171``` 4172 4173**Description** 4174 4175Adds a data record of the [OH_UdsPixelMap](#oh_udspixelmap) type to an [OH_UdmfRecord](#oh_udmfrecord) instance. 4176 4177**Since**: 13 4178 4179**Parameters** 4180 4181| Name| Description| 4182| -------- | -------- | 4183| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4184| pixelMap | Pointer to the [OH_UdsPixelMap]( #oh_udspixelmap) instance.| 4185 4186**Returns** 4187 4188Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4189 4190**See** 4191 4192[OH_UdmfRecord](#oh_udmfrecord) 4193 4194[OH_UdsPixelMap](#oh_udspixelmap) 4195 4196[Udmf_ErrCode](#udmf_errcode) 4197 4198 4199### OH_UdmfRecord_AddPlainText() 4200 4201``` 4202int OH_UdmfRecord_AddPlainText (OH_UdmfRecord* pThis, OH_UdsPlainText* plainText ) 4203``` 4204 4205**Description** 4206 4207Adds data of the [OH_UdsPlainText](#oh_udsplaintext) type to an [OH_UdmfRecord](#oh_udmfrecord) instance. 4208 4209**Since**: 12 4210 4211**Parameters** 4212 4213| Name| Description| 4214| -------- | -------- | 4215| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4216| plainText | Pointer to the [OH_UdsPlainText](#oh_udsplaintext) instance to add.| 4217 4218**Returns** 4219 4220Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4221 4222**See** 4223 4224[OH_UdmfRecord](#oh_udmfrecord) 4225 4226[OH_UdsPlainText](#oh_udsplaintext) 4227 4228[Udmf_ErrCode](#udmf_errcode) 4229 4230 4231### OH_UdmfRecord_Create() 4232 4233``` 4234OH_UdmfRecord* OH_UdmfRecord_Create () 4235``` 4236 4237**Description** 4238 4239Creates an [OH_UdmfRecord](#oh_udmfrecord) instance and a pointer to it. If this pointer is no longer required, use [OH_UdmfRecord_Destroy](#oh_udmfrecord_destroy) to destroy it. Otherwise, memory leaks may occur. 4240 4241**Since**: 12 4242 4243**Returns** 4244 4245Returns a pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance created if the operation is successful; returns **nullptr** otherwise. 4246 4247**See** 4248 4249[OH_UdmfRecord](#oh_udmfrecord) 4250 4251 4252### OH_UdmfRecord_Destroy() 4253 4254``` 4255void OH_UdmfRecord_Destroy (OH_UdmfRecord* pThis) 4256``` 4257 4258**Description** 4259 4260Destroys an [OH_UdmfRecord](#oh_udmfrecord) instance. 4261 4262**Since**: 12 4263 4264**Parameters** 4265 4266| Name| Description| 4267| -------- | -------- | 4268| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance to destroy.| 4269 4270**See** 4271 4272[OH_UdmfRecord](#oh_udmfrecord) 4273 4274 4275### OH_UdmfRecord_GetAppItem() 4276 4277``` 4278int OH_UdmfRecord_GetAppItem (OH_UdmfRecord* pThis, OH_UdsAppItem* appItem ) 4279``` 4280 4281**Description** 4282 4283Obtains [OH_UdsAppItem](#oh_udsappitem) data from an [OH_UdmfRecord](#oh_udmfrecord) instance. 4284 4285**Since**: 12 4286 4287**Parameters** 4288 4289| Name| Description| 4290| -------- | -------- | 4291| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4292| appItem | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance obtained.| 4293 4294**Returns** 4295 4296Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4297 4298**See** 4299 4300[OH_UdmfRecord](#oh_udmfrecord) 4301 4302[OH_UdsAppItem](#oh_udsappitem) 4303 4304[Udmf_ErrCode](#udmf_errcode) 4305 4306 4307### OH_UdmfRecord_GetArrayBuffer() 4308 4309``` 4310int OH_UdmfRecord_GetArrayBuffer (OH_UdmfRecord* record, const char* type, OH_UdsArrayBuffer* buffer ) 4311``` 4312 4313**Description** 4314 4315Obtains the [OH_UdsArrayBuffer](#oh_udsarraybuffer) data from an [OH_UdmfRecord](#oh_udmfrecord) instance. 4316 4317**Since**: 13 4318 4319**Parameters** 4320 4321| Name| Description| 4322| -------- | -------- | 4323| record | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4324| type | Pointer to the data type ID of the ArrayBuffer data to obtain.| 4325| buffer | Pointer to the [OH_UdsArrayBuffer]( #oh_udsarraybuffer) data obtained.| 4326 4327**Returns** 4328 4329Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4330 4331**See** 4332 4333[OH_UdmfRecord](#oh_udmfrecord) 4334 4335[OH_UdsArrayBuffer](#oh_udsarraybuffer) 4336 4337[Udmf_ErrCode](#udmf_errcode) 4338 4339 4340### OH_UdmfRecord_GetFileUri() 4341 4342``` 4343int OH_UdmfRecord_GetFileUri (OH_UdmfRecord* pThis, OH_UdsFileUri* fileUri ) 4344``` 4345 4346**Description** 4347 4348Obtains the [OH_UdsFileUri](#oh_udsfileuri) data from an [OH_UdmfRecord](#oh_udmfrecord) instance. 4349 4350**Since**: 13 4351 4352**Parameters** 4353 4354| Name| Description| 4355| -------- | -------- | 4356| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4357| fileUri | Pointer to the [OH_UdsFileUri]( #oh_udsfileuri) data obtained.| 4358 4359**Returns** 4360 4361Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4362 4363**See** 4364 4365[OH_UdmfRecord](#oh_udmfrecord) 4366 4367[OH_UdsFileUri](#oh_udsfileuri) 4368 4369[Udmf_ErrCode](#udmf_errcode) 4370 4371 4372### OH_UdmfRecord_GetGeneralEntry() 4373 4374``` 4375int OH_UdmfRecord_GetGeneralEntry (OH_UdmfRecord* pThis, const char* typeId, unsigned char** entry, unsigned int* count ) 4376``` 4377 4378**Description** 4379 4380Obtains the data of the specified type in an [OH_UdmfRecord](#oh_udmfrecord) instance. 4381 4382**Since**: 12 4383 4384**Parameters** 4385 4386| Name| Description| 4387| -------- | -------- | 4388| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4389| typeId | Pointer to the data type ID.| 4390| entry | Double pointer to the data obtained.| 4391| count | Length of the data obtained.| 4392 4393**Returns** 4394 4395Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4396 4397**See** 4398 4399[OH_UdmfRecord](#oh_udmfrecord) 4400 4401[Udmf_ErrCode](#udmf_errcode) 4402 4403 4404### OH_UdmfRecord_GetHtml() 4405 4406``` 4407int OH_UdmfRecord_GetHtml (OH_UdmfRecord* pThis, OH_UdsHtml* html ) 4408``` 4409 4410**Description** 4411 4412Obtains [OH_UdsHtml](#oh_udshtml) data from an [OH_UdmfRecord](#oh_udmfrecord) instance. 4413 4414**Since**: 12 4415 4416**Parameters** 4417 4418| Name| Description| 4419| -------- | -------- | 4420| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4421| html | Pointer to the [OH_UdsHtml](#oh_udshtml) data obtained.| 4422 4423**Returns** 4424 4425Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4426 4427**See** 4428 4429[OH_UdmfRecord](#oh_udmfrecord) 4430 4431[OH_UdsHtml](#oh_udshtml) 4432 4433[Udmf_ErrCode](#udmf_errcode) 4434 4435 4436### OH_UdmfRecord_GetHyperlink() 4437 4438``` 4439int OH_UdmfRecord_GetHyperlink (OH_UdmfRecord* pThis, OH_UdsHyperlink* hyperlink ) 4440``` 4441 4442**Description** 4443 4444Obtains [OH_UdsHyperlink](#oh_udshyperlink) data from an [OH_UdmfRecord](#oh_udmfrecord) instance. 4445 4446**Since**: 12 4447 4448**Parameters** 4449 4450| Name| Description| 4451| -------- | -------- | 4452| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4453| hyperlink | Pointer to the [OH_UdsHyperlink](#oh_udshyperlink) data obtained.| 4454 4455**Returns** 4456 4457Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4458 4459**See** 4460 4461[OH_UdmfRecord](#oh_udmfrecord) 4462 4463[OH_UdsHyperlink](#oh_udshyperlink) 4464 4465[Udmf_ErrCode](#udmf_errcode) 4466 4467 4468### OH_UdmfRecord_GetPixelMap() 4469 4470``` 4471int OH_UdmfRecord_GetPixelMap (OH_UdmfRecord* pThis, OH_UdsPixelMap* pixelMap ) 4472``` 4473 4474**Description** 4475 4476Obtains the [OH_UdsPixelMap](#oh_udspixelmap) data from an [OH_UdmfRecord](#oh_udmfrecord) instance. 4477 4478**Since**: 13 4479 4480**Parameters** 4481 4482| Name| Description| 4483| -------- | -------- | 4484| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4485| pixelMap | Pointer to the [OH_UdsPixelMap]( #oh_udspixelmap) data obtained.| 4486 4487**Returns** 4488 4489Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4490 4491**See** 4492 4493[OH_UdmfRecord](#oh_udmfrecord) 4494 4495[OH_UdsPixelMap](#oh_udspixelmap) 4496 4497[Udmf_ErrCode](#udmf_errcode) 4498 4499 4500### OH_UdmfRecord_GetPlainText() 4501 4502``` 4503int OH_UdmfRecord_GetPlainText (OH_UdmfRecord* pThis, OH_UdsPlainText* plainText ) 4504``` 4505 4506**Description** 4507 4508Obtains [OH_UdsPlainText](#oh_udsplaintext) data from an [OH_UdmfRecord](#oh_udmfrecord) instance. 4509 4510**Since**: 12 4511 4512**Parameters** 4513 4514| Name| Description| 4515| -------- | -------- | 4516| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4517| plainText | Pointer to the [OH_UdsPlainText](#oh_udsplaintext) data obtained.| 4518 4519**Returns** 4520 4521Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4522 4523**See** 4524 4525[OH_UdmfRecord](#oh_udmfrecord) 4526 4527[OH_UdsPlainText](#oh_udsplaintext) 4528 4529[Udmf_ErrCode](#udmf_errcode) 4530 4531 4532### OH_UdmfRecord_GetTypes() 4533 4534``` 4535char** OH_UdmfRecord_GetTypes (OH_UdmfRecord* pThis, unsigned int* count ) 4536``` 4537 4538**Description** 4539 4540Obtains all data types in an [OH_UdmfRecord](#oh_udmfrecord) instance. 4541 4542**Since**: 12 4543 4544**Parameters** 4545 4546| Name| Description| 4547| -------- | -------- | 4548| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4549| count | Pointer to the number of data types obtained.| 4550 4551**Returns** 4552 4553Returns a list of data types obtained if the operation is successful; returns **nullptr** otherwise. 4554 4555**See** 4556 4557[OH_UdmfRecord](#oh_udmfrecord) 4558 4559 4560### OH_UdmfRecord_SetProvider() 4561 4562``` 4563int OH_UdmfRecord_SetProvider (OH_UdmfRecord* pThis, const char* const* types, unsigned int count, OH_UdmfRecordProvider* provider ) 4564``` 4565 4566**Description** 4567 4568Sets the [OH_UdmfRecordProvider](#oh_udmfrecordprovider) in an [OH_UdmfRecord](#oh_udmfrecord) instance. 4569 4570**Since**: 13 4571 4572**Parameters** 4573 4574| Name| Description| 4575| -------- | -------- | 4576| pThis | Pointer to the [OH_UdmfRecord](#oh_udmfrecord) instance.| 4577| types | Pointer to the data types to be provided.| 4578| count | Number of the data types.| 4579| provider | Pointer to the [OH_UdmfRecordProvider]( #oh_udmfrecordprovider) instance to set.| 4580 4581**Returns** 4582 4583Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4584 4585**See** 4586 4587[OH_UdmfRecord](#oh_udmfrecord) 4588 4589[OH_UdmfRecordProvider](#oh_udmfrecordprovider) 4590 4591[Udmf_ErrCode](#udmf_errcode) 4592 4593 4594### OH_UdmfRecordProvider_Create() 4595 4596``` 4597OH_UdmfRecordProvider* OH_UdmfRecordProvider_Create () 4598``` 4599 4600**Description** 4601 4602Creates an [OH_UdmfRecordProvider](#oh_udmfrecordprovider) instance and a pointer to it. If this pointer is no longer required, use [OH_UdmfRecordProvider_Destroy](#oh_udmfrecordprovider_destroy) to destroy it. Otherwise, memory leaks may occur. 4603 4604**Since**: 13 4605 4606**Returns** 4607 4608Returns a pointer to the [OH_UdmfRecordProvider](#oh_udmfrecordprovider) instance created if the operation is successful; returns **nullptr** otherwise. 4609 4610**See** 4611 4612[OH_UdmfRecordProvider](#oh_udmfrecordprovider) 4613 4614 4615### OH_UdmfRecordProvider_Destroy() 4616 4617``` 4618int OH_UdmfRecordProvider_Destroy (OH_UdmfRecordProvider* provider) 4619``` 4620 4621**Description** 4622 4623Destroys an [OH_UdmfRecordProvider](#oh_udmfrecordprovider) instance. 4624 4625**Since**: 13 4626 4627**Parameters** 4628 4629| Name| Description| 4630| -------- | -------- | 4631| provider | Pointer to the [OH_UdmfRecordProvider](#oh_udmfrecordprovider) instance to destroy.| 4632 4633**Returns** 4634 4635Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4636 4637**See** 4638 4639[OH_UdmfRecordProvider](#oh_udmfrecordprovider) 4640 4641[Udmf_ErrCode](#udmf_errcode) 4642 4643 4644### OH_UdmfRecordProvider_SetData() 4645 4646``` 4647int OH_UdmfRecordProvider_SetData (OH_UdmfRecordProvider* provider, void* context, const OH_UdmfRecordProvider_GetData callback, const UdmfData_Finalize finalize ) 4648``` 4649 4650**Description** 4651 4652Sets a callback for an **OH_UdmfRecordProvider** instance to provide data. 4653 4654**Since**: 13 4655 4656**Parameters** 4657 4658| Name| Description| 4659| -------- | -------- | 4660| provider | Pointer to the target [OH_UdmfRecordProvider](#oh_udmfrecordprovider) instance.| 4661| context | Pointer to the context, which is passed as the first parameter to [OH_UdmfRecordProvider_GetData](#oh_udmfrecordprovider_getdata).| 4662| callback | Callback used to obtain data. For details, see [OH_UdmfRecordProvider_GetData](#oh_udmfrecordprovider_getdata).| 4663| finalize | Optional callback used to release the context data when the **OH_UdmfRecordProvider** instance is destroyed. For details, see [UdmfData_Finalize](#udmfdata_finalize).| 4664 4665**Returns** 4666 4667Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4668 4669**See** 4670 4671[OH_UdmfRecordProvider](#oh_udmfrecordprovider) 4672 4673[OH_UdmfRecordProvider_GetData](#oh_udmfrecordprovider_getdata) 4674 4675[UdmfData_Finalize](#udmfdata_finalize) [Udmf_ErrCode](#udmf_errcode) 4676 4677 4678### OH_UdsAppItem_Create() 4679 4680``` 4681OH_UdsAppItem* OH_UdsAppItem_Create () 4682``` 4683 4684**Description** 4685 4686Creates an [OH_UdsAppItem](#oh_udsappitem) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsAppItem_Destroy](#oh_udsappitem_destroy) to destroy it. Otherwise, memory leaks may occur. 4687 4688**Since**: 12 4689 4690**Returns** 4691 4692Returns a pointer to the [OH_UdsAppItem](#oh_udsappitem) data obtained; returns **nullptr** otherwise. 4693 4694**See** 4695 4696[OH_UdsAppItem](#oh_udsappitem) 4697 4698 4699### OH_UdsAppItem_Destroy() 4700 4701``` 4702void OH_UdsAppItem_Destroy (OH_UdsAppItem* pThis) 4703``` 4704 4705**Description** 4706 4707Destroys an [OH_UdsAppItem](#oh_udsappitem) instance. 4708 4709**Since**: 12 4710 4711**Parameters** 4712 4713| Name| Description| 4714| -------- | -------- | 4715| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance to destroy.| 4716 4717**See** 4718 4719[OH_UdsAppItem](#oh_udsappitem) 4720 4721 4722### OH_UdsAppItem_GetAbilityName() 4723 4724``` 4725const char* OH_UdsAppItem_GetAbilityName (OH_UdsAppItem* pThis) 4726``` 4727 4728**Description** 4729 4730Obtains the ability name from an [OH_UdsAppItem](#oh_udsappitem) instance. 4731 4732**Since**: 12 4733 4734**Parameters** 4735 4736| Name| Description| 4737| -------- | -------- | 4738| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance.| 4739 4740**Returns** 4741 4742Returns a pointer to the ability name obtained if the operation is successful; returns **nullptr** otherwise. 4743 4744**See** 4745 4746[OH_UdsAppItem](#oh_udsappitem) 4747 4748 4749### OH_UdsAppItem_GetBundleName() 4750 4751``` 4752const char* OH_UdsAppItem_GetBundleName (OH_UdsAppItem* pThis) 4753``` 4754 4755**Description** 4756 4757Obtains the bundle name from an [OH_UdsAppItem](#oh_udsappitem) instance. 4758 4759**Since**: 12 4760 4761**Parameters** 4762 4763| Name| Description| 4764| -------- | -------- | 4765| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance.| 4766 4767**Returns** 4768 4769Returns a pointer to the bundle name obtained if the operation is successful; returns **nullptr** otherwise. 4770 4771**See** 4772 4773[OH_UdsAppItem](#oh_udsappitem) 4774 4775 4776### OH_UdsAppItem_GetIconId() 4777 4778``` 4779const char* OH_UdsAppItem_GetIconId (OH_UdsAppItem* pThis) 4780``` 4781 4782**Description** 4783 4784Obtains the application icon ID from an [OH_UdsAppItem](#oh_udsappitem) instance. 4785 4786**Since**: 12 4787 4788**Parameters** 4789 4790| Name| Description| 4791| -------- | -------- | 4792| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance.| 4793 4794**Returns** 4795 4796Returns a pointer to the application icon ID obtained if the operation is successful; returns **nullptr** otherwise. 4797 4798**See** 4799 4800[OH_UdsAppItem](#oh_udsappitem) 4801 4802 4803### OH_UdsAppItem_GetId() 4804 4805``` 4806const char* OH_UdsAppItem_GetId (OH_UdsAppItem* pThis) 4807``` 4808 4809**Description** 4810 4811Obtains the application ID from an [OH_UdsAppItem](#oh_udsappitem) instance. 4812 4813**Since**: 12 4814 4815**Parameters** 4816 4817| Name| Description| 4818| -------- | -------- | 4819| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance.| 4820 4821**Returns** 4822 4823Returns a pointer to the application ID obtained if the operation is successful; returns **nullptr** otherwise. 4824 4825**See** 4826 4827[OH_UdsAppItem](#oh_udsappitem) 4828 4829 4830### OH_UdsAppItem_GetLabelId() 4831 4832``` 4833const char* OH_UdsAppItem_GetLabelId (OH_UdsAppItem* pThis) 4834``` 4835 4836**Description** 4837 4838Obtains the application label ID from an [OH_UdsAppItem](#oh_udsappitem) instance. 4839 4840**Since**: 12 4841 4842**Parameters** 4843 4844| Name| Description| 4845| -------- | -------- | 4846| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance.| 4847 4848**Returns** 4849 4850Returns a pointer to the application label ID obtained if the operation is successful; returns **nullptr** otherwise. 4851 4852**See** 4853 4854[OH_UdsAppItem](#oh_udsappitem) 4855 4856 4857### OH_UdsAppItem_GetName() 4858 4859``` 4860const char* OH_UdsAppItem_GetName (OH_UdsAppItem* pThis) 4861``` 4862 4863**Description** 4864 4865Obtains the application name from an [OH_UdsAppItem](#oh_udsappitem) instance. 4866 4867**Since**: 12 4868 4869**Parameters** 4870 4871| Name| Description| 4872| -------- | -------- | 4873| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance.| 4874 4875**Returns** 4876 4877Returns a pointer to the application name obtained if the operation is successful; returns **nullptr** otherwise. 4878 4879**See** 4880 4881[OH_UdsAppItem](#oh_udsappitem) 4882 4883 4884### OH_UdsAppItem_GetType() 4885 4886``` 4887const char* OH_UdsAppItem_GetType (OH_UdsAppItem* pThis) 4888``` 4889 4890**Description** 4891 4892Obtains the type ID from an [OH_UdsAppItem](#oh_udsappitem) instance. 4893 4894**Since**: 12 4895 4896**Parameters** 4897 4898| Name| Description| 4899| -------- | -------- | 4900| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance.| 4901 4902**Returns** 4903 4904Returns a pointer to the type ID obtained if the operation is successful; returns **nullptr** otherwise. 4905 4906**See** 4907 4908[OH_UdsAppItem](#oh_udsappitem) 4909 4910 4911### OH_UdsAppItem_SetAbilityName() 4912 4913``` 4914int OH_UdsAppItem_SetAbilityName (OH_UdsAppItem* pThis, const char* abilityName ) 4915``` 4916 4917**Description** 4918 4919Sets the ability name for an [OH_UdsAppItem](#oh_udsappitem) instance. 4920 4921**Since**: 12 4922 4923**Parameters** 4924 4925| Name| Description| 4926| -------- | -------- | 4927| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance.| 4928| abilityName | Pointer to the ability name to set.| 4929 4930**Returns** 4931 4932Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4933 4934**See** 4935 4936[OH_UdsAppItem](#oh_udsappitem) 4937 4938 4939### OH_UdsAppItem_SetBundleName() 4940 4941``` 4942int OH_UdsAppItem_SetBundleName (OH_UdsAppItem* pThis, const char* bundleName ) 4943``` 4944 4945**Description** 4946 4947Sets the bundle name for an [OH_UdsAppItem](#oh_udsappitem) instance. 4948 4949**Since**: 12 4950 4951**Parameters** 4952 4953| Name| Description| 4954| -------- | -------- | 4955| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance.| 4956| bundleName | Pointer to the bundle name to set.| 4957 4958**Returns** 4959 4960Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4961 4962**See** 4963 4964[OH_UdsAppItem](#oh_udsappitem) 4965 4966 4967### OH_UdsAppItem_SetIconId() 4968 4969``` 4970int OH_UdsAppItem_SetIconId (OH_UdsAppItem* pThis, const char* appIconId ) 4971``` 4972 4973**Description** 4974 4975Sets the application icon ID for an [OH_UdsAppItem](#oh_udsappitem) instance. 4976 4977**Since**: 12 4978 4979**Parameters** 4980 4981| Name| Description| 4982| -------- | -------- | 4983| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance.| 4984| appIconId | Pointer to the application icon ID to set.| 4985 4986**Returns** 4987 4988Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 4989 4990**See** 4991 4992[OH_UdsAppItem](#oh_udsappitem) 4993 4994 4995### OH_UdsAppItem_SetId() 4996 4997``` 4998int OH_UdsAppItem_SetId (OH_UdsAppItem* pThis, const char* appId ) 4999``` 5000 5001**Description** 5002 5003Sets the application ID for an [OH_UdsAppItem](#oh_udsappitem) instance. 5004 5005**Since**: 12 5006 5007**Parameters** 5008 5009| Name| Description| 5010| -------- | -------- | 5011| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance.| 5012| appId | Pointer to the application ID to set.| 5013 5014**Returns** 5015 5016Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 5017 5018**See** 5019 5020[OH_UdsAppItem](#oh_udsappitem) 5021 5022 5023### OH_UdsAppItem_SetLabelId() 5024 5025``` 5026int OH_UdsAppItem_SetLabelId (OH_UdsAppItem* pThis, const char* appLabelId ) 5027``` 5028 5029**Description** 5030 5031Sets the application label ID for an [OH_UdsAppItem](#oh_udsappitem) instance. 5032 5033**Since**: 12 5034 5035**Parameters** 5036 5037| Name| Description| 5038| -------- | -------- | 5039| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance.| 5040| appLabelId | Pointer to the application label ID to set.| 5041 5042**Returns** 5043 5044Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 5045 5046**See** 5047 5048[OH_UdsAppItem](#oh_udsappitem) 5049 5050 5051### OH_UdsAppItem_SetName() 5052 5053``` 5054int OH_UdsAppItem_SetName (OH_UdsAppItem* pThis, const char* appName ) 5055``` 5056 5057**Description** 5058 5059Sets the application name for an [OH_UdsAppItem](#oh_udsappitem) instance. 5060 5061**Since**: 12 5062 5063**Parameters** 5064 5065| Name| Description| 5066| -------- | -------- | 5067| pThis | Pointer to the [OH_UdsAppItem](#oh_udsappitem) instance.| 5068| appName | Pointer to the application name to set.| 5069 5070**Returns** 5071 5072Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 5073 5074**See** 5075 5076[OH_UdsAppItem](#oh_udsappitem) 5077 5078 5079### OH_UdsArrayBuffer_Create() 5080 5081``` 5082OH_UdsArrayBuffer* OH_UdsArrayBuffer_Create () 5083``` 5084 5085**Description** 5086 5087Creates an [OH_UdsArrayBuffer](#oh_udsarraybuffer) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsArrayBuffer_Destroy](#oh_udsarraybuffer_destroy) to destroy it. Otherwise, memory leaks may occur. 5088 5089**Since**: 13 5090 5091**Returns** 5092 5093Returns a pointer to the [OH_UdsArrayBuffer]( #oh_udsarraybuffer) instance created if the operation is successful; returns **nullptr** otherwise. 5094 5095**See** 5096 5097[OH_UdsArrayBuffer](#oh_udsarraybuffer) 5098 5099 5100### OH_UdsArrayBuffer_Destroy() 5101 5102``` 5103int OH_UdsArrayBuffer_Destroy (OH_UdsArrayBuffer* buffer) 5104``` 5105 5106**Description** 5107 5108Destroys an [OH_UdsArrayBuffer](#oh_udsarraybuffer) instance. 5109 5110**Since**: 13 5111 5112**Parameters** 5113 5114| Name| Description| 5115| -------- | -------- | 5116| buffer | Pointer to the [OH_UdsArrayBuffer]( #oh_udsarraybuffer) instance.| 5117 5118**Returns** 5119 5120Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 5121 5122**See** 5123 5124[OH_UdsArrayBuffer](#oh_udsarraybuffer) 5125 5126[Udmf_ErrCode](#udmf_errcode) 5127 5128 5129### OH_UdsArrayBuffer_GetData() 5130 5131``` 5132int OH_UdsArrayBuffer_GetData (OH_UdsArrayBuffer* buffer, unsigned char** data, unsigned int* len ) 5133``` 5134 5135**Description** 5136 5137Obtains the custom ArrayBuffer data from an [OH_UdsArrayBuffer](#oh_udsarraybuffer) instance. 5138 5139**Since**: 13 5140 5141**Parameters** 5142 5143| Name| Description| 5144| -------- | -------- | 5145| buffer | Pointer to the target [OH_UdsArrayBuffer](#oh_udsarraybuffer) instance.| 5146| data | Double pointer to the ArrayBuffer data obtained.| 5147| len | Pointer to the length of the ArrayBuffer data obtained.| 5148 5149**Returns** 5150 5151Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 5152 5153**See** 5154 5155[OH_UdsArrayBuffer](#oh_udsarraybuffer) 5156 5157[Udmf_ErrCode](#udmf_errcode) 5158 5159 5160### OH_UdsArrayBuffer_SetData() 5161 5162``` 5163int OH_UdsArrayBuffer_SetData (OH_UdsArrayBuffer* buffer, unsigned char* data, unsigned int len ) 5164``` 5165 5166**Description** 5167 5168Sets an [OH_UdsArrayBuffer](#oh_udsarraybuffer) instance. 5169 5170**Since**: 13 5171 5172**Parameters** 5173 5174| Name| Description| 5175| -------- | -------- | 5176| buffer | Pointer to the target [OH_UdsArrayBuffer](#oh_udsarraybuffer) instance.| 5177| data | Pointer to the ArrayBuffer data to set.| 5178| len | Length of the ArrayBuffer data to set.| 5179 5180**Returns** 5181 5182Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 5183 5184**See** 5185 5186[OH_UdsArrayBuffer](#oh_udsarraybuffer) 5187 5188[Udmf_ErrCode](#udmf_errcode) 5189 5190 5191### OH_UdsFileUri_Create() 5192 5193``` 5194OH_UdsFileUri* OH_UdsFileUri_Create () 5195``` 5196 5197**Description** 5198 5199Creates an [OH_UdsFileUri](#oh_udsfileuri) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsFileUri_Destroy](#oh_udsfileuri_destroy) to destroy it. Otherwise, memory leaks may occur. 5200 5201**Since**: 13 5202 5203**Returns** 5204 5205Returns a pointer to the [OH_UdsFileUri](#oh_udsfileuri) instance created if the operation is successful; returns **nullptr** otherwise. 5206 5207**See** 5208 5209[OH_UdsFileUri](#oh_udsfileuri) 5210 5211 5212### OH_UdsFileUri_Destroy() 5213 5214``` 5215void OH_UdsFileUri_Destroy (OH_UdsFileUri* pThis) 5216``` 5217 5218**Description** 5219 5220Destroys an [OH_UdsFileUri](#oh_udsfileuri) instance. 5221 5222**Since**: 13 5223 5224**Parameters** 5225 5226| Name| Description| 5227| -------- | -------- | 5228| pThis | Pointer to the [OH_UdsFileUri]( #oh_udsfileuri) instance to destroy.| 5229 5230**See** 5231 5232[OH_UdsFileUri](#oh_udsfileuri) 5233 5234 5235### OH_UdsFileUri_GetFileType() 5236 5237``` 5238const char* OH_UdsFileUri_GetFileType (OH_UdsFileUri* pThis) 5239``` 5240 5241**Description** 5242 5243Obtains the file type from an [OH_UdsFileUri](#oh_udsfileuri) instance. 5244 5245**Since**: 13 5246 5247**Parameters** 5248 5249| Name| Description| 5250| -------- | -------- | 5251| pThis | Pointer to the target [OH_UdsFileUri]( #oh_udsfileuri) instance.| 5252 5253**Returns** 5254 5255Returns a pointer to the file type obtained if the operation is successful; returns **nullptr** otherwise. 5256 5257**See** 5258 5259[OH_UdsFileUri](#oh_udsfileuri) 5260 5261 5262### OH_UdsFileUri_GetFileUri() 5263 5264``` 5265const char* OH_UdsFileUri_GetFileUri (OH_UdsFileUri* pThis) 5266``` 5267 5268**Description** 5269 5270Obtains the file URI from an [OH_UdsFileUri](#oh_udsfileuri) instance. 5271 5272**Since**: 13 5273 5274**Parameters** 5275 5276| Name| Description| 5277| -------- | -------- | 5278| pThis | Pointer to the target [OH_UdsFileUri]( #oh_udsfileuri) instance.| 5279 5280**Returns** 5281 5282Returns a pointer to the file URI obtained if the operation is successful; returns **nullptr** otherwise. 5283 5284**See** 5285 5286[OH_UdsFileUri](#oh_udsfileuri) 5287 5288 5289### OH_UdsFileUri_GetType() 5290 5291``` 5292const char* OH_UdsFileUri_GetType (OH_UdsFileUri* pThis) 5293``` 5294 5295**Description** 5296 5297Obtains the type ID from an [OH_UdsFileUri](#oh_udsfileuri) instance. 5298 5299**Since**: 13 5300 5301**Parameters** 5302 5303| Name| Description| 5304| -------- | -------- | 5305| pThis | Pointer to the target [OH_UdsFileUri]( #oh_udsfileuri) instance.| 5306 5307**Returns** 5308 5309Returns a pointer to the type ID obtained if the operation is successful; returns **nullptr** otherwise. 5310 5311**See** 5312 5313[OH_UdsFileUri](#oh_udsfileuri) 5314 5315 5316### OH_UdsFileUri_SetFileType() 5317 5318``` 5319int OH_UdsFileUri_SetFileType (OH_UdsFileUri* pThis, const char* fileType ) 5320``` 5321 5322**Description** 5323 5324Sets the file type for an [OH_UdsFileUri](#oh_udsfileuri) instance. 5325 5326**Since**: 13 5327 5328**Parameters** 5329 5330| Name| Description| 5331| -------- | -------- | 5332| pThis | Pointer to the target [OH_UdsFileUri]( #oh_udsfileuri) instance.| 5333| fileType | Pointer to the file type to set.| 5334 5335**Returns** 5336 5337Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 5338 5339**See** 5340 5341[OH_UdsFileUri](#oh_udsfileuri) 5342 5343[Udmf_ErrCode](#udmf_errcode) 5344 5345 5346### OH_UdsFileUri_SetFileUri() 5347 5348``` 5349int OH_UdsFileUri_SetFileUri (OH_UdsFileUri* pThis, const char* fileUri ) 5350``` 5351 5352**Description** 5353 5354Sets the URI information for an [OH_UdsFileUri](#oh_udsfileuri) instance. 5355 5356**Since**: 13 5357 5358**Parameters** 5359 5360| Name| Description| 5361| -------- | -------- | 5362| pThis | Pointer to the target [OH_UdsFileUri]( #oh_udsfileuri) instance.| 5363| fileUri | Pointer to the file URI to set.| 5364 5365**Returns** 5366 5367Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 5368 5369**See** 5370 5371[OH_UdsFileUri](#oh_udsfileuri) 5372 5373[Udmf_ErrCode](#udmf_errcode) 5374 5375 5376### OH_UdsHtml_Create() 5377 5378``` 5379OH_UdsHtml* OH_UdsHtml_Create () 5380``` 5381 5382**Description** 5383 5384Creates an [OH_UdsHtml](#oh_udshtml) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsHtml_Destroy](#oh_udshtml_destroy) to destroy it. Otherwise, memory leaks may occur. 5385 5386**Since**: 12 5387 5388**Returns** 5389 5390Returns a pointer to the [OH_UdsHtml](#oh_udshtml) instance created if the operation is successful; returns **nullptr** otherwise. 5391 5392**See** 5393 5394[OH_UdsHtml](#oh_udshtml) 5395 5396 5397### OH_UdsHtml_Destroy() 5398 5399``` 5400void OH_UdsHtml_Destroy (OH_UdsHtml* pThis) 5401``` 5402 5403**Description** 5404 5405Destroys an [OH_UdsHtml](#oh_udshtml) instance. 5406 5407**Since**: 12 5408 5409**Parameters** 5410 5411| Name| Description| 5412| -------- | -------- | 5413| pThis | Pointer to the [OH_UdsHtml](#oh_udshtml) instance to destroy.| 5414 5415**See** 5416 5417[OH_UdsHtml](#oh_udshtml) 5418 5419 5420### OH_UdsHtml_GetContent() 5421 5422``` 5423const char* OH_UdsHtml_GetContent (OH_UdsHtml* pThis) 5424``` 5425 5426**Description** 5427 5428Obtains the HTML content from an [OH_UdsHtml](#oh_udshtml) instance. 5429 5430**Since**: 12 5431 5432**Parameters** 5433 5434| Name| Description| 5435| -------- | -------- | 5436| pThis | Pointer to the [OH_UdsHtml](#oh_udshtml) instance.| 5437 5438**Returns** 5439 5440Returns a pointer to the HTML content obtained if the operation is successful; returns **nullptr** otherwise. 5441 5442**See** 5443 5444[OH_UdsHtml](#oh_udshtml) 5445 5446 5447### OH_UdsHtml_GetPlainContent() 5448 5449``` 5450const char* OH_UdsHtml_GetPlainContent (OH_UdsHtml* pThis) 5451``` 5452 5453**Description** 5454 5455Obtains the plaintext from an [OH_UdsHtml](#oh_udshtml) instance. 5456 5457**Since**: 12 5458 5459**Parameters** 5460 5461| Name| Description| 5462| -------- | -------- | 5463| pThis | Pointer to the [OH_UdsHtml](#oh_udshtml) instance.| 5464 5465**Returns** 5466 5467Returns a pointer to the plaintext obtained if the operation is successful; returns **nullptr** otherwise. 5468 5469**See** 5470 5471[OH_UdsHtml](#oh_udshtml) 5472 5473 5474### OH_UdsHtml_GetType() 5475 5476``` 5477const char* OH_UdsHtml_GetType (OH_UdsHtml* pThis) 5478``` 5479 5480**Description** 5481 5482Obtains the type ID from an [OH_UdsHtml](#oh_udshtml) instance. 5483 5484**Since**: 12 5485 5486**Parameters** 5487 5488| Name| Description| 5489| -------- | -------- | 5490| pThis | Pointer to the [OH_UdsHtml](#oh_udshtml) instance.| 5491 5492**Returns** 5493 5494Returns a pointer to the type ID obtained if the operation is successful; returns **nullptr** otherwise. 5495 5496**See** 5497 5498[OH_UdsHtml](#oh_udshtml) 5499 5500 5501### OH_UdsHtml_SetContent() 5502 5503``` 5504int OH_UdsHtml_SetContent (OH_UdsHtml* pThis, const char* content ) 5505``` 5506 5507**Description** 5508 5509Sets the HTML content for an [OH_UdsHtml](#oh_udshtml) instance. 5510 5511**Since**: 12 5512 5513**Parameters** 5514 5515| Name| Description| 5516| -------- | -------- | 5517| pThis | Pointer to the [OH_UdsHtml](#oh_udshtml) instance.| 5518| content | Pointer to the content in HTML format to set.| 5519 5520**Returns** 5521 5522Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 5523 5524**See** 5525 5526[OH_UdsHtml](#oh_udshtml) 5527 5528 5529### OH_UdsHtml_SetPlainContent() 5530 5531``` 5532int OH_UdsHtml_SetPlainContent (OH_UdsHtml* pThis, const char* plainContent ) 5533``` 5534 5535**Description** 5536 5537Sets the plaintext for an [OH_UdsHtml](#oh_udshtml) instance. 5538 5539**Since**: 12 5540 5541**Parameters** 5542 5543| Name| Description| 5544| -------- | -------- | 5545| pThis | Pointer to the [OH_UdsHtml](#oh_udshtml) instance.| 5546| plainContent | Pointer to the plain text content to set.| 5547 5548**Returns** 5549 5550Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 5551 5552**See** 5553 5554[OH_UdsHtml](#oh_udshtml) 5555 5556 5557### OH_UdsHyperlink_Create() 5558 5559``` 5560OH_UdsHyperlink* OH_UdsHyperlink_Create () 5561``` 5562 5563**Description** 5564 5565Creates an [OH_UdsHyperlink](#oh_udshyperlink) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsHyperlink_Destroy](#oh_udshyperlink_destroy) to destroy it. Otherwise, memory leaks may occur. 5566 5567**Since**: 12 5568 5569**Returns** 5570 5571Returns a pointer to the [OH_UdsHyperlink](#oh_udshyperlink) instance created if the operation is successful; returns **nullptr** otherwise. 5572 5573**See** 5574 5575[OH_UdsHyperlink](#oh_udshyperlink) 5576 5577 5578### OH_UdsHyperlink_Destroy() 5579 5580``` 5581void OH_UdsHyperlink_Destroy (OH_UdsHyperlink* pThis) 5582``` 5583 5584**Description** 5585 5586Destroys an [OH_UdsHyperlink](#oh_udshyperlink) instance. 5587 5588**Since**: 12 5589 5590**Parameters** 5591 5592| Name| Description| 5593| -------- | -------- | 5594| pThis | Pointer to the [OH_UdsHyperlink](#oh_udshyperlink) instance to destroy.| 5595 5596**See** 5597 5598[OH_UdsHyperlink](#oh_udshyperlink) 5599 5600 5601### OH_UdsHyperlink_GetDescription() 5602 5603``` 5604const char* OH_UdsHyperlink_GetDescription (OH_UdsHyperlink* pThis) 5605``` 5606 5607**Description** 5608 5609Obtains the description from an [OH_UdsHyperlink](#oh_udshyperlink) instance. 5610 5611**Since**: 12 5612 5613**Parameters** 5614 5615| Name| Description| 5616| -------- | -------- | 5617| pThis | Pointer to the [OH_UdsHyperlink](#oh_udshyperlink) instance.| 5618 5619**Returns** 5620 5621Returns a pointer to the description obtained if the operation is successful; returns **nullptr** otherwise. 5622 5623**See** 5624 5625[OH_UdsHyperlink](#oh_udshyperlink) 5626 5627 5628### OH_UdsHyperlink_GetType() 5629 5630``` 5631const char* OH_UdsHyperlink_GetType (OH_UdsHyperlink* pThis) 5632``` 5633 5634**Description** 5635 5636Obtains the type ID from an [OH_UdsHyperlink](#oh_udshyperlink) instance. 5637 5638**Since**: 12 5639 5640**Parameters** 5641 5642| Name| Description| 5643| -------- | -------- | 5644| pThis | Pointer to the [OH_UdsHyperlink](#oh_udshyperlink) instance.| 5645 5646**Returns** 5647 5648Returns a pointer to the type ID obtained if the operation is successful; returns **nullptr** otherwise. 5649 5650**See** 5651 5652[OH_UdsHyperlink](#oh_udshyperlink) 5653 5654 5655### OH_UdsHyperlink_GetUrl() 5656 5657``` 5658const char* OH_UdsHyperlink_GetUrl (OH_UdsHyperlink* pThis) 5659``` 5660 5661**Description** 5662 5663Obtains the URL from an [OH_UdsHyperlink](#oh_udshyperlink) instance. 5664 5665**Since**: 12 5666 5667**Parameters** 5668 5669| Name| Description| 5670| -------- | -------- | 5671| pThis | Pointer to the [OH_UdsHyperlink](#oh_udshyperlink) instance.| 5672 5673**Returns** 5674 5675Returns a pointer to the URL obtained if the operation is successful; returns **nullptr** otherwise. 5676 5677**See** 5678 5679[OH_UdsHyperlink](#oh_udshyperlink) 5680 5681 5682### OH_UdsHyperlink_SetDescription() 5683 5684``` 5685int OH_UdsHyperlink_SetDescription (OH_UdsHyperlink* pThis, const char* description ) 5686``` 5687 5688**Description** 5689 5690Sets the description for an [OH_UdsHyperlink](#oh_udshyperlink) instance. 5691 5692**Since**: 12 5693 5694**Parameters** 5695 5696| Name| Description| 5697| -------- | -------- | 5698| pThis | Pointer to the [OH_UdsHyperlink](#oh_udshyperlink) instance.| 5699| description | Pointer to the description to set.| 5700 5701**Returns** 5702 5703Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 5704 5705**See** 5706 5707[OH_UdsHyperlink](#oh_udshyperlink) 5708 5709 5710### OH_UdsHyperlink_SetUrl() 5711 5712``` 5713int OH_UdsHyperlink_SetUrl (OH_UdsHyperlink* pThis, const char* url ) 5714``` 5715 5716**Description** 5717 5718Sets the URL for an [OH_UdsHyperlink](#oh_udshyperlink) instance. 5719 5720**Since**: 12 5721 5722**Parameters** 5723 5724| Name| Description| 5725| -------- | -------- | 5726| pThis | Pointer to the [OH_UdsHyperlink](#oh_udshyperlink) instance.| 5727| url | Pointer to the URL to set.| 5728 5729**Returns** 5730 5731Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 5732 5733**See** 5734 5735[OH_UdsHyperlink](#oh_udshyperlink) 5736 5737 5738### OH_UdsPixelMap_Create() 5739 5740``` 5741OH_UdsPixelMap* OH_UdsPixelMap_Create () 5742``` 5743 5744**Description** 5745 5746Creates an [OH_UdsPixelMap](#oh_udspixelmap) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsPixelMap_Destroy](#oh_udspixelmap_destroy) to destroy it. Otherwise, memory leaks may occur. 5747 5748**Since**: 13 5749 5750**Returns** 5751 5752Returns a pointer to the [OH_UdsPixelMap](#oh_udspixelmap) instance created if the operation is successful; returns **nullptr** otherwise. 5753 5754**See** 5755 5756[OH_UdsPixelMap](#oh_udspixelmap) 5757 5758 5759### OH_UdsPixelMap_Destroy() 5760 5761``` 5762void OH_UdsPixelMap_Destroy (OH_UdsPixelMap* pThis) 5763``` 5764 5765**Description** 5766 5767Destroys an [OH_UdsPixelMap](#oh_udspixelmap) instance. 5768 5769**Since**: 13 5770 5771**Parameters** 5772 5773| Name| Description| 5774| -------- | -------- | 5775| pThis | Pointer to the [OH_UdsPixelMap]( #oh_udspixelmap) instance to destroy.| 5776 5777**See** 5778 5779[OH_UdsPixelMap](#oh_udspixelmap) 5780 5781 5782### OH_UdsPixelMap_GetPixelMap() 5783 5784``` 5785void OH_UdsPixelMap_GetPixelMap (OH_UdsPixelMap* pThis, OH_PixelmapNative* pixelmapNative ) 5786``` 5787 5788**Description** 5789 5790Obtains the pointer to the **OH_PixelmapNative** instance from an [OH_UdsPixelMap](#oh_udspixelmap) instance. 5791 5792**Since**: 13 5793 5794**Parameters** 5795 5796| Name| Description| 5797| -------- | -------- | 5798| pThis | Pointer to the target [OH_UdsPixelMap]( #oh_udspixelmap) instance.| 5799| pixelmapNative | Pointer to the **OH_PixelmapNative** instance obtained.| 5800 5801**See** 5802 5803[OH_UdsPixelMap](#oh_udspixelmap) 5804 5805OH_PixelmapNative 5806 5807 5808### OH_UdsPixelMap_GetType() 5809 5810``` 5811const char* OH_UdsPixelMap_GetType (OH_UdsPixelMap* pThis) 5812``` 5813 5814**Description** 5815 5816Obtains the type ID from an [OH_UdsPixelMap](#oh_udspixelmap) instance. 5817 5818**Since**: 13 5819 5820**Parameters** 5821 5822| Name| Description| 5823| -------- | -------- | 5824| pThis | Pointer to the target [OH_UdsPixelMap]( #oh_udspixelmap) instance.| 5825 5826**Returns** 5827 5828Returns a pointer to the type ID obtained if the operation is successful; returns **nullptr** otherwise. 5829 5830**See** 5831 5832[OH_UdsPixelMap](#oh_udspixelmap) 5833 5834 5835### OH_UdsPixelMap_SetPixelMap() 5836 5837``` 5838int OH_UdsPixelMap_SetPixelMap (OH_UdsPixelMap* pThis, OH_PixelmapNative* pixelmapNative ) 5839``` 5840 5841**Description** 5842 5843Sets the pixel map content for an [OH_UdsPixelMap](#oh_udspixelmap) instance. 5844 5845**Since**: 13 5846 5847**Parameters** 5848 5849| Name| Description| 5850| -------- | -------- | 5851| pThis | Pointer to the target [OH_UdsPixelMap]( #oh_udspixelmap) instance.| 5852| pixelmapNative | Pointer to the **OH_PixelmapNative** instance.| 5853 5854**Returns** 5855 5856Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 5857 5858**See** 5859 5860[OH_UdsPixelMap](#oh_udspixelmap) 5861 5862OH_PixelmapNative 5863 5864[Udmf_ErrCode](#udmf_errcode) 5865 5866 5867### OH_UdsPlainText_Create() 5868 5869``` 5870OH_UdsPlainText* OH_UdsPlainText_Create () 5871``` 5872 5873**Description** 5874 5875Creates an [OH_UdsPlainText](#oh_udsplaintext) instance and a pointer to it. If this pointer is no longer required, use [OH_UdsPlainText_Destroy](#oh_udsplaintext_destroy) to destroy it. Otherwise, memory leaks may occur. 5876 5877**Since**: 12 5878 5879**Returns** 5880 5881Returns a pointer to the [OH_UdsPlainText](#oh_udsplaintext) instance created if the operation is successful; returns **nullptr** otherwise. 5882 5883**See** 5884 5885[OH_UdsPlainText](#oh_udsplaintext) 5886 5887 5888### OH_UdsPlainText_Destroy() 5889 5890``` 5891void OH_UdsPlainText_Destroy (OH_UdsPlainText* pThis) 5892``` 5893 5894**Description** 5895 5896Destroys an [OH_UdsPlainText](#oh_udsplaintext) instance. 5897 5898**Since**: 12 5899 5900**Parameters** 5901 5902| Name| Description| 5903| -------- | -------- | 5904| pThis | Pointer to the [OH_UdsPlainText](#oh_udsplaintext) instance to destroy.| 5905 5906**See** 5907 5908[OH_UdsPlainText](#oh_udsplaintext) 5909 5910 5911### OH_UdsPlainText_GetAbstract() 5912 5913``` 5914const char* OH_UdsPlainText_GetAbstract (OH_UdsPlainText* pThis) 5915``` 5916 5917**Description** 5918 5919Obtains the abstract from an [OH_UdsPlainText](#oh_udsplaintext) instance. 5920 5921**Since**: 12 5922 5923**Parameters** 5924 5925| Name| Description| 5926| -------- | -------- | 5927| pThis | Pointer to the [OH_UdsPlainText](#oh_udsplaintext) instance.| 5928 5929**Returns** 5930 5931Returns a pointer to the abstract information obtained if the operation is successful; returns **nullptr** otherwise. 5932 5933**See** 5934 5935[OH_UdsPlainText](#oh_udsplaintext) 5936 5937 5938### OH_UdsPlainText_GetContent() 5939 5940``` 5941const char* OH_UdsPlainText_GetContent (OH_UdsPlainText* pThis) 5942``` 5943 5944**Description** 5945 5946Obtains the plaintext from an [OH_UdsPlainText](#oh_udsplaintext) instance. 5947 5948**Since**: 12 5949 5950**Parameters** 5951 5952| Name| Description| 5953| -------- | -------- | 5954| pThis | Pointer to the [OH_UdsPlainText](#oh_udsplaintext) instance.| 5955 5956**Returns** 5957 5958Returns a pointer to the plaintext obtained if the operation is successful; returns **nullptr** otherwise. 5959 5960**See** 5961 5962[OH_UdsPlainText](#oh_udsplaintext) 5963 5964 5965### OH_UdsPlainText_GetType() 5966 5967``` 5968const char* OH_UdsPlainText_GetType (OH_UdsPlainText* pThis) 5969``` 5970 5971**Description** 5972 5973Obtains the type ID from an [OH_UdsPlainText](#oh_udsplaintext) instance. 5974 5975**Since**: 12 5976 5977**Parameters** 5978 5979| Name| Description| 5980| -------- | -------- | 5981| pThis | Pointer to the [OH_UdsPlainText](#oh_udsplaintext) instance.| 5982 5983**Returns** 5984 5985Returns a pointer to the type ID obtained if the operation is successful; returns **nullptr** otherwise. 5986 5987**See** 5988 5989[OH_UdsPlainText](#oh_udsplaintext) 5990 5991 5992### OH_UdsPlainText_SetAbstract() 5993 5994``` 5995int OH_UdsPlainText_SetAbstract (OH_UdsPlainText* pThis, const char* abstract ) 5996``` 5997 5998**Description** 5999 6000Sets the abstract for an [OH_UdsPlainText](#oh_udsplaintext) instance. 6001 6002**Since**: 12 6003 6004**Parameters** 6005 6006| Name| Description| 6007| -------- | -------- | 6008| pThis | Pointer to the [OH_UdsPlainText](#oh_udsplaintext) instance.| 6009| abstract | Pointer to the abstract to set.| 6010 6011**Returns** 6012 6013Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 6014 6015**See** 6016 6017[OH_UdsPlainText](#oh_udsplaintext) 6018 6019 6020### OH_UdsPlainText_SetContent() 6021 6022``` 6023int OH_UdsPlainText_SetContent (OH_UdsPlainText* pThis, const char* content ) 6024``` 6025 6026**Description** 6027 6028Sets the plaintext content for an [OH_UdsPlainText](#oh_udsplaintext) instance. 6029 6030**Since**: 12 6031 6032**Parameters** 6033 6034| Name| Description| 6035| -------- | -------- | 6036| pThis | Pointer to the [OH_UdsPlainText](#oh_udsplaintext) instance.| 6037| content | Pointer to the plaintext content to set.| 6038 6039**Returns** 6040 6041Returns a [Udmf_ErrCode](#udmf_errcode). <br>Returns **UDMF_E_OK** if the operation is successful. <br>Returns **UDMF_E_INVALID_PARAM** if an invalid parameter is passed in. 6042 6043**See** 6044 6045[OH_UdsPlainText](#oh_udsplaintext) 6046 6047 6048### OH_Utd_BelongsTo() 6049 6050``` 6051bool OH_Utd_BelongsTo (const char* srcTypeId, const char* destTypeId ) 6052``` 6053 6054**Description** 6055 6056Checks whether a UTD belongs to the target UTD. 6057 6058**Since**: 12 6059 6060**Parameters** 6061 6062| Name| Description| 6063| -------- | -------- | 6064| srcTypeId | Pointer to the UTD to check. | 6065| destTypeId | Pointer to the target UTD.| 6066 6067**Returns** 6068 6069Returns **true** if the UTD belongs to the target UTD; returns **false** otherwise. 6070 6071 6072### OH_Utd_Create() 6073 6074``` 6075OH_Utd* OH_Utd_Create (const char* typeId) 6076``` 6077 6078**Description** 6079 6080Creates an [OH_Utd](#oh_utd) instance and a pointer to it. 6081 6082**Since**: 12 6083 6084**Parameters** 6085 6086| Name| Description| 6087| -------- | -------- | 6088| typeId | Pointer to the type ID of the instance to create.| 6089 6090**Returns** 6091 6092Returns a pointer to the [OH_Utd](#oh_utd) instance created if the operation is successful; returns **nullptr** otherwise. If this pointer is no longer required, use [OH_Utd_Destroy](#oh_utd_destroy) to destroy it. Otherwise, memory leaks may occur. 6093 6094**See** 6095 6096[OH_Utd](#oh_utd) 6097 6098 6099### OH_Utd_Destroy() 6100 6101``` 6102void OH_Utd_Destroy (OH_Utd* pThis) 6103``` 6104 6105**Description** 6106 6107Destroys an [OH_Utd](#oh_utd) instance. 6108 6109**Since**: 12 6110 6111**Parameters** 6112 6113| Name| Description| 6114| -------- | -------- | 6115| pThis | Pointer to the [OH_Utd](#oh_utd) instance to destroy.| 6116 6117**See** 6118 6119[OH_Utd](#oh_utd) 6120 6121 6122### OH_Utd_DestroyStringList() 6123 6124``` 6125void OH_Utd_DestroyStringList (const char** list, unsigned int count ) 6126``` 6127 6128**Description** 6129 6130Destroys a UTD list. 6131 6132**Since**: 12 6133 6134**Parameters** 6135 6136| Name| Description| 6137| -------- | -------- | 6138| list | Double pointer to the UTD list to destroy.| 6139| count | Length of the UTD list.| 6140 6141 6142### OH_Utd_Equals() 6143 6144``` 6145bool OH_Utd_Equals (OH_Utd* utd1, OH_Utd* utd2 ) 6146``` 6147 6148**Description** 6149 6150Checks whether two UTDs are the same. 6151 6152**Since**: 12 6153 6154**Parameters** 6155 6156| Name| Description| 6157| -------- | -------- | 6158| desc1 | Pointer to one [OH_Utd](#oh_utd) instance to compare.| 6159| desc2 | Pointer to the other [OH_Utd](#oh_utd) instance to compare.| 6160 6161**Returns** 6162 6163Returns **true** if the two instances are the same; returns **false** otherwise. 6164 6165 6166### OH_Utd_GetBelongingToTypes() 6167 6168``` 6169const char** OH_Utd_GetBelongingToTypes (OH_Utd* pThis, unsigned int* count ) 6170``` 6171 6172**Description** 6173 6174Obtains the relationships between the data in an [OH_Utd](#oh_utd) instance. 6175 6176**Since**: 12 6177 6178**Parameters** 6179 6180| Name| Description| 6181| -------- | -------- | 6182| pThis | Pointer to the [OH_Utd](#oh_utd) instance.| 6183| count | Pointer to the number of data types obtained.| 6184 6185**Returns** 6186 6187Returns a pointer to the relationship information obtained if the operation is successful; returns **nullptr** otherwise. 6188 6189**See** 6190 6191[OH_Utd](#oh_utd) 6192 6193 6194### OH_Utd_GetDescription() 6195 6196``` 6197const char* OH_Utd_GetDescription (OH_Utd* pThis) 6198``` 6199 6200**Description** 6201 6202Obtains the description from an [OH_Utd](#oh_utd) instance. 6203 6204**Since**: 12 6205 6206**Parameters** 6207 6208| Name| Description| 6209| -------- | -------- | 6210| pThis | Pointer to the [OH_Utd](#oh_utd) instance.| 6211 6212**Returns** 6213 6214Returns a pointer to the description obtained if the operation is successful; returns **nullptr** otherwise. 6215 6216**See** 6217 6218[OH_Utd](#oh_utd) 6219 6220 6221### OH_Utd_GetFilenameExtensions() 6222 6223``` 6224const char** OH_Utd_GetFilenameExtensions (OH_Utd* pThis, unsigned int* count ) 6225``` 6226 6227**Description** 6228 6229Obtains the file name extensions associated with an [OH_Utd](#oh_utd) instance. 6230 6231**Since**: 12 6232 6233**Parameters** 6234 6235| Name| Description| 6236| -------- | -------- | 6237| pThis | Pointer to the [OH_Utd](#oh_utd) instance.| 6238| count | Pointer to the number of file name extensions obtained.| 6239 6240**Returns** 6241 6242Returns a pointer to the file name extensions obtained if the operation is successful; returns **nullptr** otherwise. 6243 6244**See** 6245 6246[OH_Utd](#oh_utd) 6247 6248 6249### OH_Utd_GetIconFile() 6250 6251``` 6252const char* OH_Utd_GetIconFile (OH_Utd* pThis) 6253``` 6254 6255**Description** 6256 6257Obtains the path of the default icon file from an [OH_Utd](#oh_utd) instance. 6258 6259**Since**: 12 6260 6261**Parameters** 6262 6263| Name| Description| 6264| -------- | -------- | 6265| pThis | Pointer to the [OH_Utd](#oh_utd) instance.| 6266 6267**Returns** 6268 6269Returns a pointer to the path of the default icon file obtained if the operation is successful; returns **nullptr** otherwise. 6270 6271**See** 6272 6273[OH_Utd](#oh_utd) 6274 6275 6276### OH_Utd_GetMimeTypes() 6277 6278``` 6279const char** OH_Utd_GetMimeTypes (OH_Utd* pThis, unsigned int* count ) 6280``` 6281 6282**Description** 6283 6284Obtains the MIME types associated with an [OH_Utd](#oh_utd) instance. 6285 6286**Since**: 12 6287 6288**Parameters** 6289 6290| Name| Description| 6291| -------- | -------- | 6292| pThis | Pointer to the [OH_Utd](#oh_utd) instance.| 6293| count | Pointer to the number of MIME types obtained.| 6294 6295**Returns** 6296 6297Returns a pointer to the MIME types obtained if the operation is successful; returns **nullptr** otherwise. 6298 6299**See** 6300 6301[OH_Utd](#oh_utd) 6302 6303 6304### OH_Utd_GetReferenceUrl() 6305 6306``` 6307const char* OH_Utd_GetReferenceUrl (OH_Utd* pThis) 6308``` 6309 6310**Description** 6311 6312Obtains the URL from an [OH_Utd](#oh_utd) instance. 6313 6314**Since**: 12 6315 6316**Parameters** 6317 6318| Name| Description| 6319| -------- | -------- | 6320| pThis | Pointer to the [OH_Utd](#oh_utd) instance.| 6321 6322**Returns** 6323 6324Returns a pointer to the URL obtained if the operation is successful; returns **nullptr** otherwise. 6325 6326**See** 6327 6328[OH_Utd](#oh_utd) 6329 6330 6331### OH_Utd_GetTypeId() 6332 6333``` 6334const char* OH_Utd_GetTypeId (OH_Utd* pThis) 6335``` 6336 6337**Description** 6338 6339Obtains the type ID from an [OH_Utd](#oh_utd) instance. 6340 6341**Since**: 12 6342 6343**Parameters** 6344 6345| Name| Description| 6346| -------- | -------- | 6347| pThis | Pointer to the [OH_Utd](#oh_utd) instance.| 6348 6349**Returns** 6350 6351Returns a pointer to the type ID obtained if the operation is successful; returns **nullptr** otherwise. 6352 6353**See** 6354 6355[OH_Utd](#oh_utd) 6356 6357 6358### OH_Utd_GetTypesByFilenameExtension() 6359 6360``` 6361const char** OH_Utd_GetTypesByFilenameExtension (const char* extension, unsigned int* count ) 6362``` 6363 6364**Description** 6365 6366Obtains the uniform data types based on the file name extensions. 6367 6368**Since**: 12 6369 6370**Parameters** 6371 6372| Name| Description| 6373| -------- | -------- | 6374| extension | Pointer to the file name extensions.| 6375| count | Pointer to the number of data types obtained.| 6376 6377**Returns** 6378 6379Returns a pointer to the uniform data types obtained. If it is no longer required, use [OH_Utd_DestroyStringList](#oh_utd_destroystringlist) to destroy it. Otherwise, memory leakage occurs. 6380 6381 6382### OH_Utd_GetTypesByMimeType() 6383 6384``` 6385const char** OH_Utd_GetTypesByMimeType (const char* mimeType, unsigned int* count ) 6386``` 6387 6388**Description** 6389 6390Obtains the uniform data types based on the MIME types. 6391 6392**Since**: 12 6393 6394**Parameters** 6395 6396| Name| Description| 6397| -------- | -------- | 6398| mimeType | Pointer to the MIME types.| 6399| count | Pointer to the number of data types obtained.| 6400 6401**Returns** 6402 6403Returns a pointer to the uniform data types obtained. If it is no longer required, use [OH_Utd_DestroyStringList](#oh_utd_destroystringlist) to destroy it. Otherwise, memory leakage occurs. 6404 6405 6406### OH_Utd_IsHigher() 6407 6408``` 6409bool OH_Utd_IsHigher (const char* srcTypeId, const char* destTypeId ) 6410``` 6411 6412**Description** 6413 6414Checks whether a UTD is a higher-level type of the target UTD. For example, **SOURCE_CODE** is a higher-level type of **TYPE_SCRIPT**, and **PLAIN_TEXT** is a higher-level type of **SOURCE_CODE** and **TYPE_SCRIPT**. 6415 6416**Since**: 12 6417 6418**Parameters** 6419 6420| Name| Description| 6421| -------- | -------- | 6422| srcTypeId | Pointer to the UTD to check. | 6423| destTypeId | Pointer to the target UTD.| 6424 6425**Returns** 6426 6427Returns **true** if the UTD is a higher-level type of the target UTD; returns **false** otherwise. 6428 6429 6430### OH_Utd_IsLower() 6431 6432``` 6433bool OH_Utd_IsLower (const char* srcTypeId, const char* destTypeId ) 6434``` 6435 6436**Description** 6437 6438Checks whether a UTD is a lower-level type of the target UTD. For example, **TYPE_SCRIPT** is a lower-level type of **SOURCE_CODE**, and **TYPE_SCRIPT** and **SOURCE_CODE** are lower-level types of **PLAIN_TEXT**. 6439 6440**Since**: 12 6441 6442**Parameters** 6443 6444| Name| Description| 6445| -------- | -------- | 6446| srcTypeId | Pointer to the UTD to check. | 6447| destTypeId | Pointer to the target UTD.| 6448 6449**Returns** 6450 6451Returns **true** if the UTD is a lower-level type of the target UTD; returns **false** otherwise. 6452
