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Obtaining the screen origin of a menu?



Is there any way I can find out what the screen origin is for whatever menu my user is interacting with?

I am using PopupMenuSelect with nested hierarchical menus. I can predict the screen bounds of the top-level menu because I know its height, width and origin, but for sub-menus presented on my behalf by PopupMenuSelect, I can't figure out how to get this information.

What I want to do is implement a sort of tear-off feature. I am imagining something where if the mouse leaves the menu bounds and travels a certain distance, the tear-off will occur. What I'm doing so far is listening for kEventMenuOpening/Closing messages while tracking the menu. This allows me to identify the tear-off target, and I can get the height and width of the menu, but not the origin at which it will be drawn.

Is there any hope for finding this information?

Thanks!
Daniel

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