---
title: "CTFontCopyDefaultCascadeListForLanguages(_:_:)"
framework: coretext
role: symbol
role_heading: Function
path: "coretext/ctfontcopydefaultcascadelistforlanguages(_:_:)"
---

# CTFontCopyDefaultCascadeListForLanguages(_:_:)

Retrieves an ordered list of font substitution preferences.

## Declaration

```swift
func CTFontCopyDefaultCascadeListForLanguages(_ font: CTFont, _ languagePrefList: CFArray?) -> CFArray?
```

## Parameters

- `font`: The font reference.
- `languagePrefList`: The language preference list, an ordered array of doc://com.apple.documentation/documentation/CoreFoundation/CFStrings of ISO language codes.

## Return Value

Return Value An ordered list of CTFontDescriptors for font fallback according to the given language preferences.

## Discussion

Discussion When the original font used for text layout and rendering does not support a certain Unicode character from the provided text, the system follows this list to pick a fallback font that includes the character. The font alternatives in the cascade list match the original font’s style, weight, and width.

## See Also

### Getting Font Data

- [CTFontCopyFontDescriptor(_:)](coretext/ctfontcopyfontdescriptor(_:).md)
- [CTFontCopyAttribute(_:_:)](coretext/ctfontcopyattribute(_:_:).md)
- [CTFontGetSize(_:)](coretext/ctfontgetsize(_:).md)
- [CTFontGetMatrix(_:)](coretext/ctfontgetmatrix(_:).md)
- [CTFontGetSymbolicTraits(_:)](coretext/ctfontgetsymbolictraits(_:).md)
- [CTFontCopyTraits(_:)](coretext/ctfontcopytraits(_:).md)