public override bool VideoPlay() { VideoEnvironment_ZHSR.ZHSR_Main_Callback_Event -= VideoEnvironment_ZHSR_ZHSR_Main_Callback_Event; VideoEnvironment_ZHSR.ZHSR_Main_Callback_Event += VideoEnvironment_ZHSR_ZHSR_Main_Callback_Event; int intChannel = CurrentCameraInfo.Channel - 1; int md_tp = 1; int iRet = -1; if (CurrentVideoPlaySet.VideoTalkEnable) { md_tp = 3; iRet = SDK_ZHSRSDK.win_sta_usr_call_req(VideoEnvironment_ZHSR.Session, CurrentVideoInfo.DVSAddress, intChannel, 0, md_tp, 1, (int)intptrPlayMain); } else if (CurrentVideoPlaySet.VideoMonitorEnable) { iRet = SDK_ZHSRSDK.win_sta_start_monitor(VideoEnvironment_ZHSR.Session, CurrentVideoInfo.DVSAddress, intChannel, 0, 3, 1, (int)intptrPlayMain); } else { iRet = SDK_ZHSRSDK.win_sta_start_monitor(VideoEnvironment_ZHSR.Session, CurrentVideoInfo.DVSAddress, intChannel, 0, 1, 1, (int)intptrPlayMain); } VideoPlayCallback(new VideoPlayCallbackValue { evType = Enum_VideoPlayEventType.RequestConn }); if (iRet < 0) { VideoPlayCallback(new VideoPlayCallbackValue { evType = Enum_VideoPlayEventType.ConnFailed }); return(false); } return(true); }