qt 實現文字轉語音

void Voice::say(const char *text)

{

    if (m_bSound)

    {

        m_pVoice = NULL;

        if (FAILED(::CoInitialize(NULL)));

        //獲取SpVoice接口

        HRESULT hr = CoCreateInstance(CLSID_SpVoice,NULL,CLSCTX_ALL,IID_ISpVoice,(void**)&m_pVoice);

        if(m_pVoice == NULL) return;

        TCHAR change[256] = {0};         

        int wideLen = MultiByteToWideChar(CP_ACP,0,text,strlen(text),change,0);

        int ret = MultiByteToWideChar(CP_ACP,0,text,strlen(text),change,wideLen);

        int err = GetLastError();           

        TCHAR *temp = change;

        m_pVoice->SetRate(-1);

        m_pVoice->Speak(change,SPF_ASYNC,NULL);

    }

}