Posted whenever an NSView object that has attached surfaces (that is, NSOpen objects) moves to a different screen, or other cases where the NSOpen object needs to be updated.
SDK
Framework
class let globalFrameDidChangeNotification: NSNotification.Name
The notification object is the surface’s view. This notification does not contain a user dictionary.
class let boundsPosted whenever the NSView’s bounds rectangle changes to a new value independently of the frame rectangle, but only when the view’s posts property is true.
class let framePosted whenever the view’s frame rectangle changes to a new value, but only when the view’s posts property is true.
class let didPosted whenever an NSView object recalculates its tracking areas.