XPDrawWindow

WIDGET_API void       XPDrawWindow(
                         int                  inX1,    
                         int                  inY1,    
                         int                  inX2,    
                         int                  inY2,    
                         XPWindowStyle        inStyle);    

This routine draws a window of the given dimensions at the given offset on the virtual screen in a given style. The window is automatically scaled as appropriate using a bitmap scaling technique (scaling or repeating) as appropriate to the style.