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  "title" : "Font Feature Constants"
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# Font Feature Constants

These constants provide keys to font feature dictionary values.

## Topics

### Constants

[`let kCTFontFeatureTypeIdentifierKey: CFString`](/documentation/CoreText/kCTFontFeatureTypeIdentifierKey)

[`let kCTFontFeatureTypeNameKey: CFString`](/documentation/CoreText/kCTFontFeatureTypeNameKey)

[`let kCTFontFeatureTypeExclusiveKey: CFString`](/documentation/CoreText/kCTFontFeatureTypeExclusiveKey)

[`let kCTFontFeatureTypeSelectorsKey: CFString`](/documentation/CoreText/kCTFontFeatureTypeSelectorsKey)

[`let kCTFontFeatureSelectorIdentifierKey: CFString`](/documentation/CoreText/kCTFontFeatureSelectorIdentifierKey)

[`let kCTFontFeatureSelectorNameKey: CFString`](/documentation/CoreText/kCTFontFeatureSelectorNameKey)

[`let kCTFontFeatureSelectorDefaultKey: CFString`](/documentation/CoreText/kCTFontFeatureSelectorDefaultKey)

[`let kCTFontFeatureSelectorSettingKey: CFString`](/documentation/CoreText/kCTFontFeatureSelectorSettingKey)

[`let kCTFontFeatureSampleTextKey: CFString`](/documentation/CoreText/kCTFontFeatureSampleTextKey)

[`let kCTFontFeatureTooltipTextKey: CFString`](/documentation/CoreText/kCTFontFeatureTooltipTextKey)


---

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