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# contextHelpModeDidActivateNotification

Posted when the application enters context-sensitive help mode. This typically happens when the user holds down the Help key.

```
class let contextHelpModeDidActivateNotification: NSNotification.Name
```

## Discussion

The notification object is the help manager. This notification does not contain a `userInfo` dictionary.

To observe this notification using Swift concurrency, use [`NSHelpManager.ContextHelpModeDidActivateMessage`](/documentation/AppKit/NSHelpManager/ContextHelpModeDidActivateMessage).

---

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