void View_ExitFullScreen(object sender, EventArgs e)
        {
            if (__FeaturesCommand.ContainsKey(FullScreenFeature) &&
                __FeaturesCommand [FullScreenFeature] is ToggleFullScreenCommand)
            {
                ToggleFullScreenCommand cmd = (ToggleFullScreenCommand)__FeaturesCommand [FullScreenFeature];


                if (cmd.FullScreen)
                {
                    ExecuteFeature(FullScreenFeature);
                }
            }
        }
        private void ConfigureToggleFullScreenFeature( )
        {
            ToggleFullScreenCommand fullScreenCmd;


            fullScreenCmd = new ToggleFullScreenCommand(View.DisplayContainer);

            __FeaturesCommand.Add(FullScreenFeature, fullScreenCmd);

            fullScreenCmd.CommandExecuted += new EventHandler(fullScreenCmd_CommandExecuted);

            View.CanToggleFullScreen = true;

            View.DoToggleFullScreen += new EventHandler(View_DoToggleFullScreen);
            View.ExitFullScreen     += new EventHandler(View_ExitFullScreen);
        }