---
title: kCFUserNotificationStopAlertLevel
framework: Core Foundation
role: symbol
role_heading: Global Variable
platforms: [macOS 10.0+]
path: corefoundation/kcfusernotificationstopalertlevel
---

# kCFUserNotificationStopAlertLevel

The notification is very serious.

## Declaration

```swift
var kCFUserNotificationStopAlertLevel: CFOptionFlags { get }
```

## Discussion

Discussion A stop icon is displayed by default.

## See Also

### Constants

- [kCFUserNotificationNoteAlertLevel](corefoundation/kcfusernotificationnotealertlevel.md)
- [kCFUserNotificationCautionAlertLevel](corefoundation/kcfusernotificationcautionalertlevel.md)
- [kCFUserNotificationPlainAlertLevel](corefoundation/kcfusernotificationplainalertlevel.md)