CMSPStream::HandleTSPData method (mspstrm.h)
The HandleTSPData method may be called by the derived call object to let the stream handle the TSP commands. The default implementation returns S_OK. Override this method to implement the stream-specific portion of your MSP-TSP communication. Note that the base call object classes do not call this method; if you want to use it, you must also override the ReceiveTSPCallData method to dispatch the TSP data to your streams. The stream dispatch information, if any, will be contained in the opaque buffer.
HRESULT HandleTSPData( BYTE *pData, DWORD dwSize );
Pointer to opaque buffer containing implementation-dependent information.
Size in bytes of opaque buffer.