Starts screen and audio capture.
- iOS 11.0+
- Mac Catalyst 13.0+Beta
- tvOS 11.0+
A block that is called continuously during screen capture.
A block that is called when screen capture has started.
If an error occurred, this parameter holds an object that explains the error. Otherwise, the value of this parameter is
nil. See Errors for a list of error codes to ReplayKit.