var mediaStreamSourceStartingRequest = MediaStreamSourceStartingEventArgs.request;
The MediaStreamSourceStartingRequest class has these types of members:
The MediaStreamSourceStartingRequest class has these methods. With C#, Visual Basic, and C++, it also inherits methods from the Object class.
|GetDeferral||Defers completing the MediaStreamSource.Starting event.|
|SetActualStartPosition||Specifies the starting position in the media time-line for subsequent MediaStreamSamples that will be delivered to the MediaStreamSource.|
The MediaStreamSourceStartingRequest class has these properties.
|Read-only||Specifies a reference to a TimeSpan object which represents a time position in the media time-line from which the application should return MediaStreamSample objects.|
You can use a deferral when you want to make an asynchronous call in response to the Starting event. For example, if you need to establish a HTTP connection or open a file for reading. The MediaStreamSource will then wait for you to mark the deferral as complete before it begins raising the SampleRequested event.
To create a deferral, call the GetDeferral method to instruct the MediaStreamSource to wait for your asynchronous call to complete. When you are ready to start receiving SampleRequested events, call the Complete method to end the deferral.
See the MediaStreamSource Sample for an example of using Media Stream Source in a Windows Store app.
Minimum supported client
|Windows 8.1 [Windows Store apps, desktop apps]|
Minimum supported server
|Windows Server 2012 R2 [Windows Store apps, desktop apps]|