# cgGlyph(at:isValidIndex:) Returns the glyph at the specified index along with information about whether the glyph index is valid. ``` func cgGlyph(at glyphIndex: Int, isValidIndex: UnsafeMutablePointer?) -> CGGlyph ``` ## Parameters `glyphIndex` The index of the glyph that you want. `isValidIndex` An optional Boolean variable. On return, the variable is set to if the glyph index is valid or if it is not. ## Return Value The glyph at the specified index or if the index is out of range. ## Discussion If noncontiguous layout is disabled, calling this method generates all glyphs up to and including the one at `glyphIndex`. --- 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)