other application window close event

Question

How to detect other applications window close event or notification in cocoa/carbon based application?

eg. if there are multip

Answer 1

How to detect other applications window close event or notification in cocoa/carbon based application?

The way to do that sort of thing is to use MacOS X's accessibility model. There's a good example in the documentation that'll give you an idea of the kinds of things you can do with accessibility -- getting notified of windows being opened or closed is certainly among its capabilities.

And by the way: it works with both Cocoa and Carbon apps.