How can you update an NSMenu while it is active (visible)?

Question

I have an NSMenu instance, through which all communication with the Cocoa app will take place. If the menu is open, the background doesn't run, so how can I force an update while the menu is still active?

Answer 1

See Force NSMenu (nested submenu) update for Main Menu of Cocoa App and run that method in the background. (Don't forget to create an NSAutoreleasePool.)