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# sound(_:didFinishPlaying:)

This delegate method is called when an `NSSound` instance has completed playback of its sound data.

```
@MainActor optional func sound(_ sound: NSSound, didFinishPlaying flag: Bool)
```

## Parameters

`sound`

The `NSSound` that has completed playback of its sound data.

`flag`

<doc://com.apple.documentation/documentation/Swift/true> when playback was successful; <doc://com.apple.documentation/documentation/Swift/false> otherwise.

## See Also

  [Sound Programming Topics for Cocoa](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Sound/Sound.html#//apple_ref/doc/uid/10000104i)


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