|Microsoft DirectX 9.0|
The SetPointer method sets the pointer to the memory buffer.
HRESULT SetPointer( BYTE *ptr, LONG cBytes );
Pointer to a memory buffer allocated by the caller, of size cBytes.
Length of the buffer, in bytes.
This method enables the allocator to set a new pointer for the sample.
This method is not available through the IMediaSample interface. The object that creates the sample can access this method (through CMediaSample), but other objects cannot.