Figuring out if something is on the current screen, or getting the current screen rect

[Dr. Hawkins]

As I look through screenLoc, screenRect(s), etc., I'm not seeing *any* way
to figure out which screen an object is on, short of manually comparing
elements of its rect to the various bits of screensRects.


In particular, I want to know if another stack (or group) that I set the
position of will actually fit onto the current screen, or if I need to move
it.

Any ideas?
-- 
Dr. Richard E. Hawkins, Esq.
(702) 508-8462