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Capture "Image content" of a *BACKGROUND* window

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I'd like to place a window to a background position, and monitor, if parts of the "window image" changes.


_ScreenCapture_CaptureWnd() does not capture the content of the specified area of a given window, but what is "on the screen" in front of that window (Monitor content, not Window content).

  • Howto grab the graphical content of a window, that is covered by other windows on the screen?


Any suggestions appreciated.


Regards, Rudi.

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You have to use the PrintWindow function in user32.dll. But the result looks a little bit different than the original window.



Edited by UEZ

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