Posted whenever the NSView’s bounds rectangle changes independently of the frame rectangle, if the NSView is configured using setPostsBoundsChangedNotifications: to post such notifications.

The notification object is the NSView object whose bounds rectangle has changed. This notification does not contain a userInfo dictionary.

The following methods can result in notification posting:

setBounds:setBoundsOrigin:setBoundsRotation:setBoundsSize:translateOriginToPoint:scaleUnitSquareToSize:rotateByAngle:

Note that the bounds rectangle resizes automatically to track the frame rectangle. Because the primary change is that of the frame rectangle, however, setFrame: and setFrameSize: don’t result in a bounds-changed notification.

Available in Mac OS X v10.0 and later.