How to add my program to the OS X system menu bar?

Question

I have created a volume controller for iTunes but I would like this app to place an icon on the OS X system menu bar and have my slider controller drop down.

Answer 1

You need to create an NSStatusItem in your app. Have a look at the Status Bars documentation.

You would normally create a faceless background app by setting the LSUIElement key in your Info.plist file to YES and have the app create the status item on launch.