TTS API 使用

#define SPCAT_VOICES           L"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Speech\Voices"

#define SPKEY_ATTRIBUTES         L"Attributes"

#define SPVALUE_LANGUAGE         L"Language"

BOOL CActionCenter::InitializeSAPI()

{

      ReleaseSAPI();

      HRESULT hr;

      hr = m_cpVoice.CoCreateInstance( CLSID_SpVoice );

      if(hr == S_OK)

      {

            ISpObjectToken * pToken;        // NOTE:  Not a CComPtr!  Be Careful.

            CComPtr<IEnumSpObjectTokens> cpEnum;

            hr = SpEnumTokens(SPCAT_VOICES, L"", L"", &cpEnum);

            if (hr == S_OK)

            {

                  bool fSetDefault = false;

                  while (cpEnum->Next(1, &pToken, NULL) == S_OK)

                  {

                        //CSpDynamicString dstrDesc;

                        //hr = SpGetDescription(pToken, &dstrDesc);

                        //if (SUCCEEDED(hr))

                        {

                              m_vecISpToken.push_back(pToken);

                        }

                  }

                  return (m_vecISpToken.size() > 0);

            }

      }

      return FALSE;

}

void CActionCenter::ReleaseSAPI()

{

      vector<ISpObjectToken*>::iterator it;

      for(it=m_vecISpToken.begin(); it!=m_vecISpToken.end(); ++it)

      {

            (*it)->Release();

      }

      m_vecISpToken.clear();

}

void CActionCenter::SetVoice(LANGID lid)

{

      vector<ISpObjectToken*>::iterator it;

      WCHAR wstrLangID[32] = {0};

      swprintf(wstrLangID, L"%X", lid);

      for(it=m_vecISpToken.begin(); it!=m_vecISpToken.end(); ++it)

      {

            ISpObjectToken *pToken = (*it);

            ISpDataKey *pSpDataKeyAttributes = NULL;

            HRESULT hr = pToken->OpenKey(SPKEY_ATTRIBUTES, &pSpDataKeyAttributes);

            if(SUCCEEDED(hr))

            {

                  WCHAR *wstrLanguageID = NULL;

                  hr = pSpDataKeyAttributes->GetStringValue(SPVALUE_LANGUAGE, (WCHAR**)&wstrLanguageID);

                  if(SUCCEEDED(hr))

                  {

                        if(wcsstr((BSTR)wstrLanguageID, (BSTR)wstrLangID))

                        {

                              m_cpVoice->SetVoice(pToken);

                              break;

                        }

                  }

                  pSpDataKeyAttributes->Release();

            }

      }

}