How to set the screen capture region using DirectShow?

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Am Creating the video player using Directshow which will display the Desktop screen as the video (using UScreenCapture filter). I can change the capture region through the properties of the UScreenCapture filter before execution. I want to change the position of the desktop capture region dynamically in my vc++ code. How can i do that!?

Filters in the Graph : UScreenCapture->VideoRenderer.

Thanking you,

Posted 21-Mar-13 22:33pm

J.Surjith Kumar

Updated 21-Mar-13 23:53pm

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Maxim Kartavenkov · Accepted Answer · 2013-03-22T00:08:00

You should know COM interface for that filter which if used for configuring it via property pages. If filter have typelibrary embedded you can easy see the controlling interface (for example in OLE COOM Object viewer tool by choosing load typelibrary in menu), if filter does not expose typelibrary - you should aqsk the filter vendor for interface declaration and/or documentation.

Maxim.