CompuServe Messages

Bob Rakowsky's answer was mostly correct, except that it may be possible to go underneath the window and goof around with the "layers" of the window. You can get a pointer to the layer for your window through the RastPort. window->RPort->Layer->Flags &= ~LAYERBACKDROP; I don't know what effect this would have because I haven't tried it yet, but you may want to give it a try if you really must monkey around with that kind of stuff. I usually try and avoid such fancy tricks, but I don't know your application.