---
title: kMACaptionAppearanceSettingsChangedNotification
framework: mediaaccessibility
role: symbol
role_heading: Global Variable
path: mediaaccessibility/kmacaptionappearancesettingschangednotification
---

# kMACaptionAppearanceSettingsChangedNotification

A notification that occurs when any user-defined caption settings change.

## Declaration

```swift
let kMACaptionAppearanceSettingsChangedNotification: CFString
```

## See Also

### General settings

- [MACaptionAppearanceDidDisplayCaptions(_:)](mediaaccessibility/macaptionappearancediddisplaycaptions(_:).md)
- [MACaptionAppearanceCopyPreferredCaptioningMediaCharacteristics(_:)](mediaaccessibility/macaptionappearancecopypreferredcaptioningmediacharacteristics(_:).md)
- [MACaptionAppearanceGetDisplayType(_:)](mediaaccessibility/macaptionappearancegetdisplaytype(_:).md)
- [MACaptionAppearanceSetDisplayType(_:_:)](mediaaccessibility/macaptionappearancesetdisplaytype(_:_:).md)