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Determines if a source rectangle is valid.
virtual HRESULT CheckSourceRect( RECT * pSourceRect );
Parameters
- pSourceRect
- Source rectangle to check.
Return Values
Returns E_INVALIDARG if not valid; otherwise, returns NOERROR (S_OK).
Remarks
This member function checks that the source rectangle requested does not exceed the available source video. The left and top coordinates cannot be negative, and the width and height cannot exceed the right and bottom of the video.