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# windowDidResize(_:)

Tells the delegate that the window has been resized.

```
@MainActor optional func windowDidResize(_ notification: Notification)
```

## Parameters

`notification`

A notification named [`didResizeNotification`](/documentation/AppKit/NSWindow/didResizeNotification).

## Discussion

You can retrieve the window object in question by sending <doc://com.apple.documentation/documentation/Foundation/NSNotification/object> to `notification`.

---

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