---
title: "glyph(at:isValidIndex:)"
framework: appkit
role: symbol
role_heading: Instance Method
path: "appkit/nslayoutmanager/glyph(at:isvalidindex:)"
---

# glyph(at:isValidIndex:)

Returns the glyph at a specified index, and optionally returns a flag indicating whether the requested index is valid.

## Declaration

```swift
func glyph(at glyphIndex: Int, isValidIndex: UnsafeMutablePointer<ObjCBool>?) -> NSGlyph
```

## Parameters

- `glyphIndex`: The index of the glyph to be returned.
- `isValidIndex`: If not NULL, on output, doc://com.apple.documentation/documentation/Swift/true if the requested index is in range; otherwise doc://com.apple.documentation/documentation/Swift/false.

## Return Value

Return Value The glyph at the requested index, or NSNullGlyph if the requested index is out of the range {0, ``NSLayoutManager/numberOfGlyphs```}`.

## Discussion

Discussion If noncontiguous layout is not enabled, this method causes generation of all glyphs up to and including glyphIndex.

## See Also

### Methods

- [showCGGlyphs(_:positions:count:font:matrix:attributes:in:)](appkit/nslayoutmanager/showcgglyphs(_:positions:count:font:matrix:attributes:in:).md)
- [invalidateGlyphs(onLayoutInvalidationForGlyphRange:)](appkit/nslayoutmanager/invalidateglyphs(onlayoutinvalidationforglyphrange:).md)
- [invalidateLayout(forCharacterRange:isSoft:actualCharacterRange:)](appkit/nslayoutmanager/invalidatelayout(forcharacterrange:issoft:actualcharacterrange:).md)
- [textStorage(_:edited:range:changeInLength:invalidatedRange:)](appkit/nslayoutmanager/textstorage(_:edited:range:changeinlength:invalidatedrange:).md)
- [insertGlyph(_:atGlyphIndex:characterIndex:)](appkit/nslayoutmanager/insertglyph(_:atglyphindex:characterindex:).md)
- [insertGlyphs(_:length:forStartingGlyphAt:characterIndex:)](appkit/nslayoutmanager/insertglyphs(_:length:forstartingglyphat:characterindex:).md)
- [glyph(at:)](appkit/nslayoutmanager/glyph(at:).md)
- [replaceGlyph(at:withGlyph:)](appkit/nslayoutmanager/replaceglyph(at:withglyph:).md)
- [getGlyphs(_:range:)](appkit/nslayoutmanager/getglyphs(_:range:).md)
- [getGlyphs(in:glyphs:characterIndexes:glyphInscriptions:elasticBits:)](appkit/nslayoutmanager/getglyphs(in:glyphs:characterindexes:glyphinscriptions:elasticbits:).md)
- [getGlyphs(in:glyphs:characterIndexes:glyphInscriptions:elasticBits:bidiLevels:)](appkit/nslayoutmanager/getglyphs(in:glyphs:characterindexes:glyphinscriptions:elasticbits:bidilevels:).md)
- [deleteGlyphs(in:)](appkit/nslayoutmanager/deleteglyphs(in:).md)
- [setCharacterIndex(_:forGlyphAt:)](appkit/nslayoutmanager/setcharacterindex(_:forglyphat:).md)
- [intAttribute(_:forGlyphAt:)](appkit/nslayoutmanager/intattribute(_:forglyphat:).md)
- [setIntAttribute(_:value:forGlyphAt:)](appkit/nslayoutmanager/setintattribute(_:value:forglyphat:).md)