561 	const Widget *widget);

   561 	const Widget *widget);

   562 

   562 

   563 void DrawWindowViewport(Window *w);

   563 void DrawWindowViewport(Window *w);

   564 

   564 

   565 void InitWindowSystem(void);

   565 void InitWindowSystem(void);

   566 int GetMenuItemIndex(Window *w, int x, int y);

   568 int GetMenuItemIndex(Window *w, int x, int y);

   567 void MouseLoop(void);

   569 void MouseLoop(void);

   568 void UpdateWindows(void);

   570 void UpdateWindows(void);

   569 void InvalidateWidget(Window *w, byte widget_index);

   571 void InvalidateWidget(Window *w, byte widget_index);

   570 

   572