Find the Handle of the window at the top of the screen

Question

I want to check when the window of an external application (a Poker On Line Game Table) jumps over all other windows because it's my turn to play.

The problem is that the Game table jumps in the foreground... but the window DOES NOT BECOME ACTIVE... this means that I can't check if it is jumped over all the other visible windows by the API GetForegroundWindow (and in fatc this API continue to return the Handle of the previous window, also if it is UNDER the Game Table that is jumped over ALL the desktop windows). Also the GetTopWindow API don't works.

Now the question is: how to find the handle of the top VISIBLE window (the window that is over all the other open windows for my eyes) also if it is not active???

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No, the Window IS NOT a TopMost window: in fact if I click on another window it goes in background. If it should be a TopMost window it would remain on the top.

Probably it is put in the foreground by a WM_SHOW or WM_NOACTIVATE flag.

Answer 1

EnumWindows and possibly WindowFromPoint API functions. You can use them via P/Invoke in your VB.NET application and be able to find windows either in top to bottom order (EnumWindows) checking their location, caption etc on the way to identify the window of your interest, or directly locate the window at certain position (WindowFromPoint; I thought your window of interested might be popping up in the center of the screen, or centered by another window you already know or you can easily find it by its caption - this way you know the point of your interest on the screen already).