sapi_lipsync::initializeObjects

This method initializes SAPI and creates the objects used by subclasses, it does not start the lipsync process.
00133 {
00134     HRESULT hr = S_OK;
00135     m_err = L"";
00136     try
00137     {
00138         // create the recognizer (inproc)
00139         hr = this->m_recog.CoCreateInstance(CLSID_SpInprocRecognizer);
00140         if (hr != S_OK) 
00141         {
00142             m_err = L"Error: Can't create SAPI Speech Recognizer (ISpRecognizer)";
00143             throw (hr);
00144         }
00145 
00146         // create the recognition context from the recognizer
00147         hr = this->m_recog->CreateRecoContext(&this->m_recogCntxt);
00148         if (hr != S_OK)
00149         {
00150             m_err = L"Error: Cannot create SAPI Recognition Context (ISpRecoContext)";
00151             throw (hr);
00152         }            
00153 
00154         hr = m_recogCntxt->SetNotifyCallbackFunction(&this->sapi_callback, 0, LPARAM(this));
00155         if (hr != S_OK)
00156         {
00157             m_err = L"Error: Cannot set notify callback function. (SetNofifyCallbackFunction)";
00158             throw (hr);
00159         }
00160         // initialize and disable the grammar
00161         hr = m_recogCntxt->CreateGrammar(GID_LIPSYNC, &m_grammar);
00162         if (hr != S_OK)
00163         {
00164             m_err = L"Error: Failed to create grammar for lipsync";
00165             throw (hr);
00166         }
00167         // not totally sure here!
00168         //hr = m_grammar->SetGrammarState(SPGS_DISABLED); Let subclasses handle the grammer state
00169         if (hr != S_OK)
00170         {
00171             m_err = L"Error: Failed to disable the grammar.";
00172             throw (hr);
00173         }
00174 
00175         // need a phoneme converter to map SPHONEID into phoneme strings
00176         hr = SpCreatePhoneConverter(MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), 
00177             NULL, NULL, &this->m_phnCvt);
00178         if (hr != S_OK)
00179         {
00180             m_err = L"Error: Failed create phoneme converter";
00181             throw (hr);
00182         }
00183 
00184         // Set interest level for events, we want all events, just in case.                
00185         hr = m_recogCntxt->SetInterest(ullInterest, ullInterest);
00186         if (hr != S_OK)
00187         {
00188             m_err = L"Error: Cannot correctly set notifications for the Speech Recognizer";
00189             throw(hr);
00190         }
00191         // turn off recognizer while we initialize things. HMMM
00192         //m_recog->SetRecoState(SPRST_INACTIVE);
00193     } 
00194     catch (HRESULT& _hr)
00195     {
00196         hr = _hr;
00197     }
00198     return (hr == S_OK);
00199 }