Text-to-speech simple class c++ SAPI

TTS simple class c++ source code

TextSpeaker.h

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#pragma once   #include <sapi.h>               // SAPI #include <sphelper.h>           // SAPI Helper   #include "ComAutoInit.h"        // COM auto initializer     //------------------------------------------------------------------------ // Simple class to speak some text (using SAPI). //------------------------------------------------------------------------ class CTextSpeaker { public:       //--------------------------------------------------------------------     // Initializes the text speaker.     //--------------------------------------------------------------------     CTextSpeaker()     {         //         // Create text to speech engine         //         HRESULT hr = m_tts.CoCreateInstance(CLSID_SpVoice);         if (FAILED(hr))         {             ATLTRACE(TEXT("Text-to-speech creation failed.\n"));             AtlThrow(hr);         }             //         // Get token corresponding to default voice          //         hr = SpGetDefaultTokenFromCategoryId(SPCAT_VOICES, &m_voiceToken, FALSE);         if (FAILED(hr))         {             ATLTRACE(TEXT("Can't get default voice token.\n"));             AtlThrow(hr);         }             //         // Set default voice         //         hr = m_tts->SetVoice(m_voiceToken);         if (FAILED(hr))         {             ATLTRACE(TEXT("Can't set default voice.\n"));             AtlThrow(hr);         }     }         //--------------------------------------------------------------------     // Speaks some text.     // (The input text must not be empty.)     //--------------------------------------------------------------------     void Speak(const CString & text)     {         //         // Input text must not be empty         //         if (text.IsEmpty())         {             ATLTRACE(TEXT("Empty text passed to CTextSpeaker::Speak().\n"));             AtlThrow(E_INVALIDARG);         }             //         // Speak input text         //         ULONG streamNumber;         HRESULT hr = m_tts->Speak(             text,              SPF_IS_NOT_XML | SPF_ASYNC | SPF_PURGEBEFORESPEAK,              &streamNumber);         if (FAILED(hr))         {             ATLTRACE(TEXT("Speak failed.\n"));             AtlThrow(hr);         }     }         //--------------------------------------------------------------------     // Cleanup     //--------------------------------------------------------------------     ~CTextSpeaker()     {         // Nothing to do here.         // Automatic cleanup thanks to C++ RAII is fine :-)     }           //     // Ban copy     // private:     CTextSpeaker(const CTextSpeaker &);     CTextSpeaker & operator=(const CTextSpeaker &);           //     // IMPLEMENTATION     // private:       // COM initialization and cleanup (must precede other COM related data members)     CComAutoInit m_comInit;       // Text to speech engine     CComPtr<ISpVoice> m_tts;       // Default voice token     CComPtr<ISpObjectToken> m_voiceToken; };