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


I believe that you can not do anything with Windows API.

I have two windows that have a DWM thumbnail, what I have to do, I want to be able to capture the window's screen with a thumbnail in the other. When I do this, using bitblt, everything is copied except for the thumbnail and it is not just in the bitmap.

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

Thanks a bunch.

It is not how DWM works: the content of the thumbnails at any time on your window's DC Not hoisted. Instead, the DWM structure engine will present thumbnails directly on the contents of your window when the desktop is presented.

Unfortunately, there is no official way to access the image data of a DWM thumbnail (however, on a net which attempts to access underlying top data and present in DirectX 9).


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