如何在用cpp编写的Windows服务中找到活动用户

Question

我必须在我的服务中查找活动用户。是否有任何可能的方法来查找活动用户。该服务是作为本地系统登录。我可以跟踪登录并从服务控件中注销

以下是用于跟踪会话更改的代码块

 DWORD WINAPI service_ctrl(DWORD dwCtrlCode, DWORD dwEventType, LPVOID lpEventData, LPVOID lpContext)
  {     
        DWORD   dReturn     = NO_ERROR;
        ///////////////////////////////

        try
        {
            switch(dwCtrlCode)
            {

                case SERVICE_CONTROL_STOP:

                    break;


                case SERVICE_CONTROL_INTERROGATE:
                    break;

                case SERVICE_CONTROL_SHUTDOWN:


                case SERVICE_CONTROL_SESSIONCHANGE: 

                    switch(dwEventType)
                    {
                        case WTS_CONSOLE_CONNECT:
                            break;

                        case WTS_CONSOLE_DISCONNECT:
                            break;

                        case WTS_REMOTE_CONNECT:
                            break;

                        case WTS_REMOTE_DISCONNECT:
                            break;

                        case WTS_SESSION_LOGON:
                            break;

                        case WTS_SESSION_LOGOFF:
                            break;

                        case WTS_SESSION_LOCK:
                            break;

                        case WTS_SESSION_UNLOCK:
                            break;
                        default:
                            break;
                    }
                    break;
                case SERVICE_CONTROL_POWEREVENT:

                    }
                    break;

            }

        return dReturn;
    }