Snow Leopard Style Pop-Ups

Is there a framework that draws Snow Leopard style popups? For an example of what I am talking about, try right clicking something in t开发者_运维问答he dock. I basically want to be able to give a starting point (where the arrow forms) and then a size and have it do the rest.

In this case it's a menu, though my use would be more of just for drawing a popup.

Check out Matt Gemmell's MAAttachedWindow. It does exactly what you need: lets you specify a starting point, orientation, and the view which should be placed inside the popup.