C++ 启动和停止电脑中的服务

#define SERVICE_NO_ERROR 0
#define OPEN_SCMANAGER_ERROR 2
#define OPEN_SERVICE_ERROR 3
#define QUERY_SERVICESTATUS_ERROR 4
#define STOP_SERVICE_ERROR 5
#define START_SERVICE_ERROR 6


int CPmsAndOneCardDlg::RestartService()
{

    // 打开服务管理对象
    SC_HANDLE hSC = ::OpenSCManager( NULL,
        NULL, GENERIC_EXECUTE);
    if( hSC == NULL)
    {      
        return OPEN_SCMANAGER_ERROR;
    }
    // 打开apache服务。
    SC_HANDLE hSvc = ::OpenService( hSC, "apache",
        SERVICE_START | SERVICE_QUERY_STATUS | SERVICE_STOP);
    if( hSvc == NULL)
    {
        ::CloseServiceHandle( hSC);
        return OPEN_SERVICE_ERROR;
    }
    // 获得服务的状态
    SERVICE_STATUS status;
    if( ::QueryServiceStatus( hSvc, &status) == FALSE)
    {
        ::CloseServiceHandle( hSvc);
        ::CloseServiceHandle( hSC);
        return QUERY_SERVICESTATUS_ERROR;
    }
    //如果处于运行状态则停止服务
    if( status.dwCurrentState == SERVICE_RUNNING)
    {
        // 停止服务
        if( ::ControlService( hSvc,
            SERVICE_CONTROL_STOP, &status) == FALSE)
        {
            ::CloseServiceHandle( hSvc);
            ::CloseServiceHandle( hSC);
            return STOP_SERVICE_ERROR;
        }
        // 等待服务停止
        while( ::QueryServiceStatus( hSvc, &status) == TRUE)
        {
            ::Sleep( status.dwWaitHint);
            if( status.dwCurrentState == SERVICE_STOPPED)
            {
                break;
            }
        }
    }
   
    // 启动服务
    if( ::StartService( hSvc, NULL, NULL) == FALSE)
    {
        ::CloseServiceHandle( hSvc);
        ::CloseServiceHandle( hSC);
        return START_SERVICE_ERROR;
    }
    // 等待服务启动
    while( ::QueryServiceStatus( hSvc, &status) == TRUE)
    {
        ::Sleep( status.dwWaitHint);
        if( status.dwCurrentState == SERVICE_RUNNING)
        {          
            break;
        }
    }
   
    ::CloseServiceHandle( hSvc);
    ::CloseServiceHandle( hSC);
    return SERVICE_NO_ERROR;
}