I suggest that you look at the GDI+ objects. I know that some of them have
a clipping rectangle property so there may be a way to see if that clipping
rectangle is 'active' which would mean it was visible.
Robby
"Jose Michael Meo R. Barrido" <mi**@rdmsinc.net> wrote in message
news:u5**************@TK2MSFTNGP14.phx.gbl...
How to know if a certain control or window is visible on screen and not
covered by other window(s)? please help.