In order to receive events, implement the IMediaPlayerTrackingEventHandler interface, and register the listener with the MediaPlayer.

Example:

             A. In your class:
             
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public sealed partial class HubPage : Page , MediaPlayerTrackingEventHandler {

   public void onTrackingEventReceived(object sender , MediaPlayerEventArgs Event) {

     System.Diagnostics.Debug.WriteLine("Event = Type: " + Event.Type + " Message: " + Event.Message );
     if (Event.Type == MediaTrackingEvents.MediaEventType.FULLSCREEN)
         System.Diagnostics.Debug.WriteLine("Fullscreen entered");
else if (Event.Type == MediaTrackingEvents.MediaEventType.EXIT_FULLSCREEN)
         System.Diagnostics.Debug.WriteLine("Fullscreen exited");
}
            
             B. When initializing the player (or any time you wish to start receiving events):
             
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MediaPlayer.getInstance().addTrackingEventHandler(this.onTrackingEventReceived);
             or
             
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MediaPlayer.getInstance().PlayerEvent += onTrackingEventReceived;
             
             C. When you no longer want to receive events:
             
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MediaPlayer.getInstance().removeTrackingEventHandler(this.onTrackingEventReceived);
             or
             
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MediaPlayer.getInstance().PlayerEvent -= onTrackingEventReceived;