<!--
{
  "availability" : [
    "macOS: 10.7.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "AppKit",
  "identifier" : "/documentation/AppKit/NSWindowDelegate/windowWillExitFullScreen(_:)",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "AppKit"
    ],
    "preciseIdentifier" : "c:objc(pl)NSWindowDelegate(im)windowWillExitFullScreen:"
  },
  "title" : "windowWillExitFullScreen(_:)"
}
-->

# windowWillExitFullScreen(_:)

The window is about to exit full-screen mode.

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

## Parameters

`notification`

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

## Discussion

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)