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Retrieves a video sample that represents the current video format.
virtual VIDEOINFOHEADER * GetVideoFormat( ) PURE;
Returns a pointer to a VIDEOINFOHEADERstructure that contains the current video format.
To return and check certain information through IBasicVideo, the object must know the current video format. It gets this information by calling this pure virtual method that derived classes must override. This member function is called by the following CBaseControlVideomember functions.