AMCOPPSignature 6772 3rdparty/include/dshow/strmif.h virtual HRESULT WINAPI SessionSequenceStart(AMCOPPSignature *pSig) = 0; AMCOPPSignature 6783 3rdparty/include/dshow/strmif.h HRESULT (WINAPI *SessionSequenceStart)(IAMCertifiedOutputProtection *This,AMCOPPSignature *pSig); AMCOPPSignature 6803 3rdparty/include/dshow/strmif.h HRESULT WINAPI IAMCertifiedOutputProtection_SessionSequenceStart_Proxy(IAMCertifiedOutputProtection *This,AMCOPPSignature *pSig);