1# image_pixel_map_napi.h 2 3 4## Overview 5 6The **image_pixel_map_napi.h** file declares the APIs that can lock, access, and unlock a pixel map. 7 8**Since** 9 108 11 12**Related Modules** 13 14[Image](image.md) 15 16 17## Summary 18 19 20### Structs 21 22| Name| Description| 23| -------- | -------- | 24| [OHOS::Media::OhosPixelMapInfo](_o_h_o_s_1_1_media_1_1_ohos_pixel_map_info.md) | Defines the pixel map information.| 25 26 27### Enums 28 29| Name| Description| 30| -------- | -------- | 31| { [OHOS::Media::OHOS_IMAGE_RESULT_SUCCESS](image.md) = 0,<br>[OHOS::Media::OHOS_IMAGE_RESULT_BAD_PARAMETER](image.md) = -1 } | Enumerates the error codes returned by the functions.| 32| { [OHOS::Media::OHOS_PIXEL_MAP_FORMAT_NONE](image.md) = 0,<br>[OHOS::Media::OHOS_PIXEL_MAP_FORMAT_RGBA_8888](image.md) = 3,<br>[OHOS::Media::OHOS_PIXEL_MAP_FORMAT_RGB_565](image.md) = 2 } | Enumerates the pixel map formats.| 33| { [OHOS::Media::OHOS_PIXEL_MAP_SCALE_MODE_FIT_TARGET_SIZE](image.md) = 0,<br>[OHOS::Media::OHOS_PIXEL_MAP_SCALE_MODE_CENTER_CROP](image.md) = 1 } | Enumerates the pixel map scale modes.| 34 35 36### Functions 37 38| Name| Description| 39| -------- | -------- | 40| [OHOS::Media::OH_GetImageInfo](image.md#oh_getimageinfo) (napi_env env, napi_value value, [OhosPixelMapInfo](_o_h_o_s_1_1_media_1_1_ohos_pixel_map_info.md) \*info) | Obtains the information about a **PixelMap** object and stores the information to the [OhosPixelMapInfo](_o_h_o_s_1_1_media_1_1_ohos_pixel_map_info.md) struct.| 41| [OHOS::Media::OH_AccessPixels](image.md#oh_accesspixels) (napi_env env, napi_value value, void \*\*addrPtr) | Obtains the memory address of a **PixelMap** object and locks the memory.| 42| [OHOS::Media::OH_UnAccessPixels](image.md#oh_unaccesspixels) (napi_env env, napi_value value) | Unlocks the memory of a **PixelMap** object. This function is used with **OH_AccessPixels** in pairs.| 43