http://developer.apple.com/documentation/Cocoa/Reference/ApplicationKit/Classes/NSStatusBar_Class/index.html

http://www.diggory.net/grazing/vidimenu.gif

The area at the top right of the screen (in the menu bar) - That contains NSStatusItem s

Of course, that image is a menu extra, no? – RobRix (Are NSMenuExtras subclasses of NSStatusItems?)

Yes, NSMenuExtras are a sort of NSStatusItem, and as far as the actual objects go NSMenuExtra inherits from NSStatusItem. Of course, they’re implemented very differently. –FinlayDobbie

It would certainly seem so.