How do I create a black-bordered bubble window in Cocoa?

Question

I'm talking specifically about the kind you get if you click and hold on an app in the dock, or a folder if list view is enabled. Is it a menu style, or a window flag I can set like the brushed metal-style?

Lots of little free apps seem to use it. http://bambooapps.com/free-stuff/ is a good example.

Answer 1

Check out MAAttachedWindow.