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# progressMarkNotification

Posted when the current progress of a running animation reaches one of its progress marks.

```
class let progressMarkNotification: NSNotification.Name
```

## Discussion

The notification object is a running `NSAnimation` object. The `userInfo` dictionary contains the current progress mark, accessed via the key `NSAnimationProgressMark`.

## See Also

[`-  animation:didReachProgressMark:`](/documentation/AppKit/NSAnimationDelegate/animation(_:didReachProgressMark:))

Sent to the delegate when an animation reaches a specific progress mark.


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