Getting a threading error on a SC

MIP
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1

I want to open a floading window if I get an alarm over modbus. Getting the modbus message and creating the analytics alarm is not the problem. If I try to open the floating window I get the Message from SmartClient that the calling thread has to be a STA-Thread. My programming is nearly the same as in the example SCHotSpot. I don’t use the “SelectedCameraChangedIndication” here I use “NewAlarmIndication”, see code snippet.

How can I put the call to the right thread?

2

I think, I found a solution for that. I use now:

_msgObj1 = _manager.RegisterReceiver(new MessageReceiver(NewAlarmMessageHandler), new MessageIdFilter(MessageId.Server.NewAlarmIndication));

       \_msgObj1 = \_manager.RegisterReceiver(new MessageReceiver(ChangedAlarmMessageHandler), new MessageIdFilter(MessageId.Server.ChangedAlarmIndication));

instead of:

//MessageCommunicationManager.Start(_manager.MasterSite.ServerId);

       //\_msgCommunication = MessageCommunicationManager.Get(\_manager.MasterSite.ServerId);

       //\_msgObj1 = \_msgCommunication.RegisterCommunicationFilter(NewAlarmMessageHandler, new CommunicationIdFilter(MessageId.Server.NewAlarmIndication), null, EndPointType.Server);

       //\_msgObj2 = \_msgCommunication.RegisterCommunicationFilter(ChangedAlarmMessageHandler, new CommunicationIdFilter(MessageId.Server.ChangedAlarmIndication), null, EndPointType.Server);
3

There is a timing issue registering the communication filters right after the start. Yes; you found a solution.