Hi, I have a field of items with WinHandle type pointing to offscreen windows. I would also like to store some special values such as "no window", "empty window", "black window" etc. Are there any safe values that will never be returned by WinCreate(Offscreen)Window? I guess I can use zero, but what next? 1, 2, 3 or perhaps 0xFFFFFFFF, 0xFFFFFFFE, 0xFFFFFFFD? Thanks for tips, Petr
