public MainWindow() { InitializeComponent(); _vlcPlugin = new AxVLCPlugin2(); VlcHost.Child = _vlcPlugin; _vlcPlugin.MediaPlayerPositionChanged += _vlcPlugin_MediaPlayerPositionChanged; _vlcPlugin.MediaPlayerTimeChanged += _vlcPlugin_MediaPlayerTimeChanged; Position.AddHandler(MouseLeftButtonUpEvent, new MouseButtonEventHandler(Position_MouseLeftButtonUp), true); Loaded += MainWindow_Loaded; }