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# postsBoundsChangedNotifications

A Boolean value indicating whether the view posts notifications when its bounds rectangle changes.

```
var postsBoundsChangedNotifications: Bool { get set }
```

## Discussion

When the value of this property is <doc://com.apple.documentation/documentation/Swift/true> and the view’s bounds rectangle changes to a new value, the view posts a [`boundsDidChangeNotification`](/documentation/AppKit/NSView/boundsDidChangeNotification) to the default notification center. The notification is not posted when you set the bounds rectangle to the value it already has. The default value of this property is <doc://com.apple.documentation/documentation/Swift/true>.

If the value of this property is currently <doc://com.apple.documentation/documentation/Swift/false> and the bounds have changed, changing the value to <doc://com.apple.documentation/documentation/Swift/true> causes the view to post a [`boundsDidChangeNotification`](/documentation/AppKit/NSView/boundsDidChangeNotification) notification immediately. This happens even when there has been no net change in the view’s bounds rectangle.

The following methods and properties can trigger a frame change notification:

- [`bounds`](/documentation/AppKit/NSView/bounds)
- [`setBoundsOrigin(_:)`](/documentation/AppKit/NSView/setBoundsOrigin(_:))
- [`setBoundsSize(_:)`](/documentation/AppKit/NSView/setBoundsSize(_:))
- [`boundsRotation`](/documentation/AppKit/NSView/boundsRotation)
- [`translateOrigin(to:)`](/documentation/AppKit/NSView/translateOrigin(to:))
- [`scaleUnitSquare(to:)`](/documentation/AppKit/NSView/scaleUnitSquare(to:))
- [`rotate(byDegrees:)`](/documentation/AppKit/NSView/rotate(byDegrees:))

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