private void btnCloseAll_Click(object sender, RoutedEventArgs e)
        {
            MapMethods.SendClosePadVideos();                                //关闭大屏视频背景板
            for (int i = 0; i < PublicParams.arrayOpenedVideos.Length; i++) //逐个关闭视频
            {
                if (PublicParams.arrayOpenedVideos[i] == null)
                {
                    return;
                }
                CloseOneVideo(PublicParams.arrayOpenedVideos[i] as Camera);
            }

            WallVideosHelper.InitOpenedVideos();
            WallVideosHelper.RefreshOpenedVideos();
        }
        /// <summary>
        /// LPY 2016-3-31 添加
        /// 关闭一路视频
        /// </summary>
        /// <param name="camera">待关闭视频</param>
        private void CloseOneVideo(Camera camera)
        {
            if (camera == null)
            {
                return;
            }

            PublicParams.dvcsServerMain.SendCMD(DVCSAgreement.CloseWin(camera.WinID));
            MapMethods.SendShowHidePadVideosTextByID("", camera.ID + 1, "0");
            //LogHelper.WriteLog(string.Format("已发送指令,关闭WinID:{0}的视频--{1}",camera.WinID.ToString(),PublicParams.dvcsServerMainName));
            PublicParams.arrayOpenedVideos[camera.ID] = null;

            WallVideosHelper.CloseVideoToWallForDVCS2(camera);

            WallVideosHelper.RefreshOpenedVideos();
        }