Looking for a Cocoa (Mac OS X) event that occurs when the window becomes deactivated

Question

I read that that class NSWindows has some of its own events, but I could not find a list of all them. I believe there is an event that occurs when the window becomes deactivated.

Does such an event exist?

Answer 1

Events and notifications are two different things, but you probably want NSWindowDelegate Protocol Reference.

Answer 2

Try NSWindowDidResignKeyNotification notification, but it's not Event.

Or in NSWindow subclass overload the -(void)resignKeyWindow method.