1# MediaControlExtensionContext (ExtensionAbility Context for Media Playback Control) (System API) 2 3**MediaControlExtensionContext**, inherited from [UIExtensionContext](../apis-ability-kit/js-apis-inner-application-uiExtensionContext.md), provides the context environment for [MediaControlExtensionAbility](js-apis-app-ability-MediaControlExtensionAbility-sys.md). It provides MediaControlExtensionAbility-related configuration and APIs for operating the MediaControlExtensionAbility. For example, you can use the APIs to start a MediaControlExtensionAbility. 4 5**System capability**: SystemCapability.Multimedia.AVSession.Core 6 7> **NOTE** 8> 9> - The initial APIs of this module are supported since API version 10. Newly added APIs will be marked with a superscript to indicate their earliest API version. 10> - The APIs of this module can be used only in the stage model. 11> - The APIs provided by this module are system APIs. 12