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# viewWillMove(toHostWindow:)

Invoked when a web view’s host window is about to change.

```
func viewWillMove(toHostWindow hostWindow: NSWindow!)
```

## Parameters

`hostWindow`

The new host window for the view.

## See Also

[`hostWindow`](/documentation/WebKit/WebView-swift.class/hostWindow)

The receiver’s host window.


---

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