BackgroundTasks.BackgroundAudioTask.smtc_ButtonPressed C# (CSharp) Method

        private void smtc_ButtonPressed(SystemMediaTransportControls sender, SystemMediaTransportControlsButtonPressedEventArgs args)
        {
            switch (args.Button)
            {
                case SystemMediaTransportControlsButton.Play:
                    Debug.WriteLine("UVC play button pressed");

                    // When the background task has been suspended and the SMTC
                    // starts it again asynchronously, some time is needed to let
                    // the task startup process in Run() complete.

                    // Wait for task to start. 
                    // Once started, this stays signaled until shutdown so it won't wait
                    // again unless it needs to.
                    bool result = backgroundTaskStarted.WaitOne(5000);
                    if (!result)
                        throw new Exception("Background Task didnt initialize in time");

                    StartPlayback();
                    break;
                case SystemMediaTransportControlsButton.Pause:
                    Debug.WriteLine("UVC pause button pressed");
                    try
                    {
                        BackgroundMediaPlayer.Current.Pause();
                    }
                    catch (Exception ex)
                    {
                        Debug.WriteLine(ex.ToString());
                    }
                    break;
                case SystemMediaTransportControlsButton.Next:
                    Debug.WriteLine("UVC next button pressed");
                    SkipToNext();
                    break;
                case SystemMediaTransportControlsButton.Previous:
                    Debug.WriteLine("UVC previous button pressed");
                    SkipToPrevious();
                    break;
            }
        }