Taking a screenshot of the window in the background

Question

Will it be any problems to take a screenshot of the window content, if that window is overlapped by some other application.

Answer 1

Unless you've got a method in the application to render it to an off-screen bitmap you'll only get the visible portions of the window.

Answer 2

You could hide the top window, then do the screenshot. In autohotkey: use winhide:

WinHide, window_name

your snapshot code here, then

 WinShow, window_name