Struct Control
sealed struct Control
This type is used to represent the state of some control element related to media playback.
The state of the control is intended to be acted upon by custom actions. See [Action].
For example, say a media playback application supports an “X-ray” feature, where
the states are ON and OFF and the custom actions to turn it on/off are ENABLE_XRAY
and DISABLE_XRAY, then the [MediaSessionState#controls] array should have one entry
with the current state: [Control("X-ray", "OFF")].
Upon receiving [IMediaControlHandlerAsync#handleCustomAction] with action ENABLE_XRAY
the media session should update the control state by updating [MediaSessionState#controls]
with an entry such as [Control("X-ray", "ON")] and calling [IMediaControlServerAsync#updateMediaSessionStates]
