# Core Text Functions ## Topics ### Functions [`CTFontDescriptorMatchFontDescriptorsWithProgressHandler(_:_:_:)`](/documentation/CoreText/CTFontDescriptorMatchFontDescriptorsWithProgressHandler(_:_:_:)) Matches font descriptors and tracks progress with a progress handler. [`CTFontManagerCompareFontFamilyNames(_:_:_:)`](/documentation/CoreText/CTFontManagerCompareFontFamilyNames(_:_:_:)) A comparator function to compare font family names and sort them according to Apple guidelines. [`CTFontManagerCopyAvailableFontFamilyNames()`](/documentation/CoreText/CTFontManagerCopyAvailableFontFamilyNames()) Returns an array of visible font family names sorted for user interface display. [`CTFontManagerCopyAvailableFontURLs()`](/documentation/CoreText/CTFontManagerCopyAvailableFontURLs()) Returns an array of font URLs. [`CTFontManagerCopyAvailablePostScriptNames()`](/documentation/CoreText/CTFontManagerCopyAvailablePostScriptNames()) Returns an array of unique PostScript font names for the fonts. [`CTFontManagerCreateFontDescriptorFromData(_:)`](/documentation/CoreText/CTFontManagerCreateFontDescriptorFromData(_:)) Creates a font descriptor representing the font in the supplied data. [`CTFontManagerCreateFontDescriptorsFromURL(_:)`](/documentation/CoreText/CTFontManagerCreateFontDescriptorsFromURL(_:)) Returns an array of font descriptors representing each of the fonts in the specified URL. [`CTFontManagerCreateFontRequestRunLoopSource(_:_:)`](/documentation/CoreText/CTFontManagerCreateFontRequestRunLoopSource(_:_:)) Creates a reference to a run loop source used to convey font requests from the Font Manager. [`CTFontManagerEnableFontDescriptors(_:_:)`](/documentation/CoreText/CTFontManagerEnableFontDescriptors(_:_:)) Enables or disables the matching font descriptors for font descriptor matching. [`CTFontManagerGetAutoActivationSetting(_:)`](/documentation/CoreText/CTFontManagerGetAutoActivationSetting(_:)) Gets the auto-activation setting for the specified bundle identifier. [`CTFontManagerGetScopeForURL(_:)`](/documentation/CoreText/CTFontManagerGetScopeForURL(_:)) Returns the registration scope of the specified URL. [`CTFontManagerIsSupportedFont(_:)`](/documentation/CoreText/CTFontManagerIsSupportedFont(_:)) Determines whether a file is in a supported font format. [`CTFontManagerRegisterFontsForURL(_:_:_:)`](/documentation/CoreText/CTFontManagerRegisterFontsForURL(_:_:_:)) Registers fonts from the specified font URL with the Font Manager. Registered fonts are discoverable through font descriptor matching. [`CTFontManagerRegisterFontsForURLs(_:_:_:)`](/documentation/CoreText/CTFontManagerRegisterFontsForURLs(_:_:_:)) Registers fonts from the specified array of font URLs with the Font Manager. Registered fonts are discoverable through font descriptor matching. [`CTFontManagerRegisterGraphicsFont(_:_:)`](/documentation/CoreText/CTFontManagerRegisterGraphicsFont(_:_:)) Registers the specified graphics font with the font manager. [`CTFontManagerSetAutoActivationSetting(_:_:)`](/documentation/CoreText/CTFontManagerSetAutoActivationSetting(_:_:)) Sets the auto-activation setting for the specified bundle identifier. [`CTFontManagerUnregisterFontsForURL(_:_:_:)`](/documentation/CoreText/CTFontManagerUnregisterFontsForURL(_:_:_:)) Unregisters fonts from the specified font URL with the Font Manager. Unregistered fonts are no longer discoverable through font descriptor matching. [`CTFontManagerUnregisterFontsForURLs(_:_:_:)`](/documentation/CoreText/CTFontManagerUnregisterFontsForURLs(_:_:_:)) Unregisters fonts from the specified array of font URLs with the Font Manager. Unregistered fonts are no longer discoverable through font descriptor matching. [`CTFontManagerUnregisterGraphicsFont(_:_:)`](/documentation/CoreText/CTFontManagerUnregisterGraphicsFont(_:_:)) Unregisters the specified graphics font with the font manager. [`CTFontManagerCopyRegisteredFontDescriptors(_:_:)`](/documentation/CoreText/CTFontManagerCopyRegisteredFontDescriptors(_:_:)) Retrieves the font descriptors that were registered with the font manager. [`CTFontManagerCreateFontDescriptorsFromData(_:)`](/documentation/CoreText/CTFontManagerCreateFontDescriptorsFromData(_:)) Creates an array of font descriptors for the fonts in the supplied data. [`CTFontManagerRegisterFontDescriptors(_:_:_:_:)`](/documentation/CoreText/CTFontManagerRegisterFontDescriptors(_:_:_:_:)) Registers font descriptors with the font manager. [`CTFontManagerRegisterFontURLs(_:_:_:_:)`](/documentation/CoreText/CTFontManagerRegisterFontURLs(_:_:_:_:)) Registers fonts from the specified font URLs with the font manager. [`CTFontManagerRegisterFontsWithAssetNames(_:_:_:_:_:)`](/documentation/CoreText/CTFontManagerRegisterFontsWithAssetNames(_:_:_:_:_:)) Registers named font assets in the specified bundle with the font manager. [`CTFontManagerRequestFonts(_:_:)`](/documentation/CoreText/CTFontManagerRequestFonts(_:_:)) Resolves font descriptors specified on input. [`CTFontManagerUnregisterFontDescriptors(_:_:_:)`](/documentation/CoreText/CTFontManagerUnregisterFontDescriptors(_:_:_:)) Unregisters font descriptors with the font manager. [`CTFontManagerUnregisterFontURLs(_:_:_:)`](/documentation/CoreText/CTFontManagerUnregisterFontURLs(_:_:_:)) Unregisters fonts from the specified font URLs with the font manager. [`CTGetCoreTextVersion()`](/documentation/CoreText/CTGetCoreTextVersion()) Returns the version of the Core Text framework. [`CTRubyAnnotationCreate(_:_:_:_:)`](/documentation/CoreText/CTRubyAnnotationCreate(_:_:_:_:)) Creates an immutable ruby annotation object. [`CTRubyAnnotationCreateCopy(_:)`](/documentation/CoreText/CTRubyAnnotationCreateCopy(_:)) Creates an immutable copy of a ruby annotation object. [`CTRubyAnnotationCreateWithAttributes(_:_:_:_:_:)`](/documentation/CoreText/CTRubyAnnotationCreateWithAttributes(_:_:_:_:_:)) Creates an immutable ruby annotation object with the specified attributes. [`CTRubyAnnotationGetAlignment(_:)`](/documentation/CoreText/CTRubyAnnotationGetAlignment(_:)) Retrieves the alignment value of a ruby annotation object. [`CTRubyAnnotationGetOverhang(_:)`](/documentation/CoreText/CTRubyAnnotationGetOverhang(_:)) Retrieves the overhang value of a ruby annotation object. [`CTRubyAnnotationGetSizeFactor(_:)`](/documentation/CoreText/CTRubyAnnotationGetSizeFactor(_:)) Retrieves the size factor of a ruby annotation object. [`CTRubyAnnotationGetTextForPosition(_:_:)`](/documentation/CoreText/CTRubyAnnotationGetTextForPosition(_:_:)) Retrieves the ruby text for a particular position in a ruby annotation. [`CTRubyAnnotationGetTypeID()`](/documentation/CoreText/CTRubyAnnotationGetTypeID()) Retrieves the type of the ruby annotation object. [`CTFontCopyNameForGlyph(_:_:)`](/documentation/CoreText/CTFontCopyNameForGlyph(_:_:)) Retrieves the name for the specified glyph. [`CTFontDrawImageFromAdaptiveImageProviderAtPoint(_:_:_:_:)`](/documentation/CoreText/CTFontDrawImageFromAdaptiveImageProviderAtPoint(_:_:_:_:)) [`CTFontGetTypographicBoundsForAdaptiveImageProvider(_:_:)`](/documentation/CoreText/CTFontGetTypographicBoundsForAdaptiveImageProvider(_:_:)) [`CTFontHasTable(_:_:)`](/documentation/CoreText/CTFontHasTable(_:_:)) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)