public WindowApplicationSettings(WindowSettings windowSettings)
     : base(windowSettings.window.Name)
 {
     this.windowSettings = windowSettings;
 }
 /// <summary>
 /// Called when Save is changed on an object.
 /// </summary>
 private static void OnSaveInvalidated(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
 {
     Window window = dependencyObject as Window;
     if (window != null)
     {
         if ((bool) e.NewValue)
         {
             WindowSettings settings = new WindowSettings(window);
             settings.Attach();
         }
     }
 }