Paul,

>- This more a question than an ER - is there anyway to implement subjects/observers for custom events?

Yes, basically there is. I've already been playing around with that. But there's a problem with the cleanup of the subjects/observers when they are directly dropped on a form. But maybe that's my fault, that I'm doing something wrong here. I hadn't got enough time to have a deeper look into this, but IMO it should be possible (maybe with some small changes).

You can create a subclass of cSubject and set the token to whatever you want. Then create a subclass of cObserver and add the appropriate code to handle the incoming events. Just like it is described in the DevGuide.

I'll let you know, when I've found more about that.

Regards,
Armin