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C # Capturing a video stream from a window

I am trying to create a window preview (just like the Windows7 "spy" function) for a PC. I would like to capture the live video output into the game window and create a mini-preview in the panel.

Any clues on how to do this?

Thank!

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You need to research "hooking."

Essentially, you need to “intercept” what is displayed in the back buffer before it is replaced by the screen.

See the following article for connecting to the buffer in directx: http://spazzarama.wordpress.com/2010/03/29/screen-capture-with-direct3d-api-hooks/

This is not an easy process!

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