<!--
{
  "availability" : [
    "macOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "AppKit",
  "identifier" : "/documentation/AppKit/NSApplication/RequestUserAttentionType/criticalRequest",
  "metadataVersion" : "0.1.0",
  "role" : "Case",
  "symbol" : {
    "kind" : "Case",
    "modules" : [
      "AppKit"
    ],
    "preciseIdentifier" : "c:@E@NSRequestUserAttentionType@NSCriticalRequest"
  },
  "title" : "NSApplication.RequestUserAttentionType.criticalRequest"
}
-->

# NSApplication.RequestUserAttentionType.criticalRequest

The user attention request is a critical request.

```
case criticalRequest
```

## Discussion

The dock icon will bounce until either the app becomes active or the request is canceled.

---

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)