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# kCMGenlockClockNotification_DisplayGenlockModeChanged

Posted when the display mode changes from genlock to non-genlock or vice versa.

```
let kCMGenlockClockNotification_DisplayGenlockModeChanged: CFString
```

## Discussion

Observe this notification using `CMNotificationCenterAddListener` on the
default local `CMNotificationCenter`.
The notification payload dictionary contains a `CFBoolean` value for the key
`kCMGenlockClockNotificationPayload_AnyDisplayIsSynchronizedToLockedGenlockSignal`.

---

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