添加头文件

声明变量

pSpVoice = NULL; //默认构造函数中初始化为空
bool CChKBarSCCodeApp::InitSpVoice()
{
	HRESULT hr = ::CoInitialize(NULL);         // COM初始化
	if (!SUCCEEDED(hr))
	{
		AfxMessageBox(_T("声音环境初始化失败！"));
		return false;
	}
	// 获取ISpVoice接口
	if (FAILED(CoCreateInstance(CLSID_SpVoice, NULL, CLSCTX_INPROC_SERVER, IID_ISpVoice, (void**)&pSpVoice)))
	{
		AfxMessageBox(_T(" 获取ISpVoice接口失败！"));
		return -1; // 当获取ISpVoice接口失败时，返回-1
	}
	//SpFindBestToken是SAPI中的一个函数，用于根据指定的属性条件查找最佳的语音token
	if (SUCCEEDED(SpFindBestToken(SPCAT_VOICES, L"language=804", NULL, &pSpObjectToken)))//804代表中文
	{
		pSpVoice->SetVoice(pSpObjectToken);//设置中文
		pSpVoice->SetVolume(m_oHardPara.m_nVolumeSize);//设置声音大小
		pSpVoice->SetVolume(m_oHardPara.m_nVolumeSpeed);
	}
	else
	{
		AfxMessageBox(_T("没有安装微软语音库!"));
		return false;
	}
	return true;
}

void CChKBarSCCodeApp::SpVoiceOK()
{
	CString sTxt =_T("扫描成功");
	pSpVoice->Speak(sTxt.AllocSysString(), SPF_ASYNC, NULL);//异步读取
}

void CChKBarSCCodeApp::SpVoiceNG()
{
	CString sTxt = _T("扫描失败");
	pSpVoice->Speak(sTxt.AllocSysString(), SPF_ASYNC, NULL);//异步读取
}

int CChKBarSCCodeApp::ExitInstance()
{
	

	if (pSpVoice)
	{
		pSpVoice->Release();
	}
	::CoUninitialize();

	return CWinApp::ExitInstance();
}