---
title: NSApplication.RequestUserAttentionType.criticalRequest
framework: appkit
role: symbol
role_heading: Case
path: appkit/nsapplication/requestuserattentiontype/criticalrequest
---

# NSApplication.RequestUserAttentionType.criticalRequest

The user attention request is a critical request.

## Declaration

```swift
case criticalRequest
```

## Discussion

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

## See Also

### Constants

- [NSApplication.RequestUserAttentionType.informationalRequest](appkit/nsapplication/requestuserattentiontype/informationalrequest.md)