Cgw.MonitorManageAdapter.CgwMonitorManageAdapter.StopControlPtz C# (CSharp) Method

        public Cgw.SmcError.SmcErr StopControlPtz(string cameraNo, Common.PtzCommandType ptzCommandType)
        {
            NLogEx.LoggerEx logEx = new NLogEx.LoggerEx(log);
            logEx.Trace("Enter: CgwMonitorManageAdapter.StopControlPtz");
            Cgw.SmcError.SmcErr err = new Cgw.SmcError.SmcErr();

            try
            {
                //if (serviceControl.MonitorServiceRun() && client.State == CommunicationState.Opened)
                if(serviceControl.MonitorServiceRun())
                {
                    client = new MonitorManageServiceClient();
                    CgwMonitorManageServiceReference.PtzCommandType ptzCommand = (CgwMonitorManageServiceReference.PtzCommandType)ptzCommandType;  //将平台的枚举转换成服务中的枚举

                    CgwMonitorManageServiceReference.SmcErr serviceErr = client.StopControlPtz(cameraNo, ptzCommand);
                    client.Close();
                    if (serviceErr.ErrNo != Cgw.SmcError.CgwError.ERR_MONITOR_MANAGE_SERVICE_SUCCESS)
                    {
                        logEx.Error("Stop control ptz failed.Camera no:{0},ptzCommandType:{1},Error Code:{2} ", cameraNo, ptzCommand, err.ErrNo);
                        err = SetCgwErrNo(serviceErr);
                    }
                    else
                    {
                        logEx.Info("Stop control ptz success.Camera no:{0},ptzCommandType:{1}.", cameraNo, ptzCommand);
                    }
                }
                else
                {
                    err.SetErrorNo(Cgw.SmcError.CgwError.ERR_MONITOR_MANAGE_SERVICE_RESTARTING);
                }
            }
            catch (System.Exception ex)
            {
                err.SetErrorNo(Cgw.SmcError.CgwError.ERR_MONITOR_MANAGE_SERVICE_RESTARTING);
                logEx.Error("CgwMonitorManageServiceReference.StopControlPtz failed. Exception is {0} ", ex.ToString());
            }
            return err;
        }