1# @ohos.app.ability.wantConstant (wantConstant) 2 3The **wantConstant** module provides the actions, entities, and flags used in **Want** objects. 4 5> **NOTE** 6> 7> The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version. 8 9## Modules to Import 10 11```ts 12import wantConstant from '@ohos.app.ability.wantConstant'; 13``` 14 15## wantConstant.Params 16 17Enumerates the action constants of the **Want** object. **action** specifies the operation to execute. 18 19**System capability**: SystemCapability.Ability.AbilityBase 20 21| Name | Value | Description | 22| ----------------------- | ---------------------------------- | ------------------------------------------------------------------------------ | 23| DLP_PARAMS_SANDBOX | ohos.dlp.params.sandbox | Action of obtaining the sandbox flag.<br>**System API**: This is a system API and cannot be called by third-party applications.| 24| DLP_PARAMS_BUNDLE_NAME | ohos.dlp.params.bundleName | Action of obtaining the DLP bundle name.<br>**System API**: This is a system API and cannot be called by third-party applications.| 25| DLP_PARAMS_MODULE_NAME | ohos.dlp.params.moduleName | Action of obtaining the DLP module name.<br>**System API**: This is a system API and cannot be called by third-party applications.| 26| DLP_PARAMS_ABILITY_NAME | ohos.dlp.params.abilityName | Action of obtaining the DLP ability name.<br>**System API**: This is a system API and cannot be called by third-party applications.| 27| DLP_PARAMS_INDEX | ohos.dlp.params.index | Action of obtaining the DLP index.<br>**System API**: This is a system API and cannot be called by third-party applications.| 28| ABILITY_BACK_TO_OTHER_MISSION_STACK | ability.params.backToOtherMissionStack | Whether to support redirection back across mission stacks.<br>**System API**: This is a system API and cannot be called by third-party applications.| 29 30## wantConstant.Flags 31 32 Enumerates the flags that specify how the Want will be handled. 33 34**System capability**: SystemCapability.Ability.AbilityBase 35 36| Name | Value | Description | 37| ------------------------------------ | ---------- | ------------------------------------------------------------ | 38| FLAG_AUTH_READ_URI_PERMISSION | 0x00000001 | Indicates the permission to read the URI. | 39| FLAG_AUTH_WRITE_URI_PERMISSION | 0x00000002 | Indicates the permission to write data to the URI. | 40| FLAG_INSTALL_ON_DEMAND | 0x00000800 | Indicates that the specific ability will be installed if it has not been installed. | 41