Cocoa: Reverting to a previous active application?

Question

Is there a way to capture an application that was previously active before my application was brought to the user by the user?

I tried this in applicationWillBecomeActive: delegate method, but my application is already marked as active.

Thanks.

Answer 1

Register the NSWorkspaceDidDeactivateApplicationNotification notification with NSWorkspace. This will give you an NSRunningApplication instance of what was disabled.