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Capture overlay video frame to a bitmap

Posted on 2007-04-03
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Last Modified: 2013-12-03
How can I take a screenshot of a window which is using overlay ? (like winamp's video with hardware overlay enabled).
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Question by:bryan7
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by:Andre_Tertling
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If you are looking for a very simple solution, then simply disable Hardware Acceleration for the time being - Windows will then use software rendering and you will be able to create a simple screenshot of the overlay. If you need to capture the video overlay window, this is quite a bit more difficult. Let me know if your application is so time critical that you really need to capture the hardware overlay.
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I was able to accomplish this by taking a full capture of the whole screen then cropping to the window rect; taking a full capture somehow includes the contents of windows with overlay
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