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# preferredScrollerStyleDidChangeNotification

Posted if the preferred scroller style changes.

```
class let preferredScrollerStyleDidChangeNotification: NSNotification.Name
```

## Discussion

For a full discussion, see [`preferredScrollerStyle`](/documentation/AppKit/NSScroller/preferredScrollerStyle).

To observe this notification using Swift concurrency, use [`NSScroller.PreferredScrollerStyleDidChangeMessage`](/documentation/AppKit/NSScroller/PreferredScrollerStyleDidChangeMessage).

---

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