create 2 pic wins ofthe same size. the first is the shadow fill it with the shadow color. when you create this window create it 2 pixels to the right and down ofthe planned x,y. then create your second pic win the actual menu and place it at x,y on top of the shadow window.
the drawback is you have 2 windows open but a menu is designed to be short lived so i see no harm in it (dont forget to create the shadow window with switchbar button).
