Is it possible to capture a window with windows 7 DWM thumbnail in it?

Posted by Dogan Demir on Stack Overflow See other posts from Stack Overflow or by Dogan Demir
Published on 2010-02-03T23:18:11Z Indexed on 2010/06/01 1:43 UTC
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I am starting to believe that you can do nothing with Windows API.

I have two windows. One has a DWM thumbnail in it. What I want to do is, I want to be able to capture the screen of the window with the thumbnail into the other one. When I do this, using bitblt, everything is copied except the thumbnail. It just isn't there in the bitmap.

So how does the DWM rendering work? I mean, if DWM renders thumbnails directly onto the DC of the registered window, then my approach should work. I'm confused.

Thanks a bunch.

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