Submitted by Anonymous on Thu, 05/30/2002 - 14:00. Developers
I have a program that is crashing when XGetWindowAttributes()
or XGetWindowProperty() is called. The crash happens in an
event handler, and seems to be created in a situation where
the window that generated the event dies before the handler
is actually called.

I think the crash is happening because the window pointer is
bad. It seems that sometimes XGetWindowAttributes or
XGetWindowProperty crashes in this situation. Is there a
better or more appropriate way to verify that a window is valid
before using the Window pointer in a call to XGetWindowAttributes()
or XGetWindowProperty()?

Thanks!

Brian