Text to speech hello world sapi

#include <sapi.h>#pragma comment(lib,"ole32.lib")   //CoInitialize CoCreateInstance需要调用ole32.dll#pragma comment(lib,"sapi.lib")    //sapi.lib在SDK的lib目录,必需正确配置int main(int argc, char* argv[]){    ISpVoice * pVoice = NULL;    if (FAILED(::CoInitialize(NULL)))        return FALSE;    HRESULT hr = CoCreateInstance(CLSID_SpVoice, NULL, CLSCTX_ALL, IID_ISpVoice, (void **)&pVoice);    if( SUCCEEDED( hr ) )    {        hr = pVoice->Speak(L"您有新消息", 0, NULL);        // Change pitch        hr = pVoice->Speak(L"您的好友 <pitch middle = '+10'/> 上线了", SPF_IS_XML, NULL );        pVoice->Release();        pVoice = NULL;    }    ::CoUninitialize();    return TRUE;}