---
title: kColorSyncDeviceUnregisteredNotification
framework: colorsync
role: symbol
role_heading: Global Variable
platforms: [Mac Catalyst 13.0+, macOS 10.13+]
path: colorsync/kcolorsyncdeviceunregisterednotification
---

# kColorSyncDeviceUnregisteredNotification

A notification that ColorSync posts when a device is unregistered.

## Declaration

```swift
var kColorSyncDeviceUnregisteredNotification: Unmanaged<CFString>!
```

## See Also

### Observing device notifications

- [kColorSyncDeviceProfilesNotification](colorsync/kcolorsyncdeviceprofilesnotification.md)
- [kColorSyncDeviceRegisteredNotification](colorsync/kcolorsyncdeviceregisterednotification.md)
- [kColorSyncDisplayDeviceProfilesNotification](colorsync/kcolorsyncdisplaydeviceprofilesnotification.md)
- [kColorSyncRegistrationUpdateWindowServer](colorsync/kcolorsyncregistrationupdatewindowserver.md)