---
title: kCTFontFeatureTypeIdentifierKey
framework: coretext
role: symbol
role_heading: Global Variable
path: coretext/kctfontfeaturetypeidentifierkey
---

# kCTFontFeatureTypeIdentifierKey

## Declaration

```swift
let kCTFontFeatureTypeIdentifierKey: CFString
```

## Discussion

Discussion Key to get the font feature type value as a CFNumberRef object.

## See Also

### Constants

- [kCTFontFeatureTypeNameKey](coretext/kctfontfeaturetypenamekey.md)
- [kCTFontFeatureTypeExclusiveKey](coretext/kctfontfeaturetypeexclusivekey.md)
- [kCTFontFeatureTypeSelectorsKey](coretext/kctfontfeaturetypeselectorskey.md)
- [kCTFontFeatureSelectorIdentifierKey](coretext/kctfontfeatureselectoridentifierkey.md)
- [kCTFontFeatureSelectorNameKey](coretext/kctfontfeatureselectornamekey.md)
- [kCTFontFeatureSelectorDefaultKey](coretext/kctfontfeatureselectordefaultkey.md)
- [kCTFontFeatureSelectorSettingKey](coretext/kctfontfeatureselectorsettingkey.md)
- [kCTFontFeatureSampleTextKey](coretext/kctfontfeaturesampletextkey.md)
- [kCTFontFeatureTooltipTextKey](coretext/kctfontfeaturetooltiptextkey.md)