Hello,

I have a question about callbacks. I'm using a TopWindow that creates asynchronous callbacks. When the TopWindow is closed, it may be possible that one of the callbacks are still being executed. I changed the declaration to PTEBACK2 instead of THISBACK2, which seemed to help for most cases. However, I still experience problems. Now I know that you cannot just terminate an execution path. I could build in the necessary synchronization. However, when I saw the PTEBACK alternative, I was thinking: Does U++ provide a method to prevent crashing when execution PTEBACK's when its parent TopWindow is closed a.k.a. destroyed? Is there a simpler solution I can build in to suppress the situation?

Thanks,

crydev