# showCGGlyphs(_:positions:count:font:textMatrix:attributes:in:) Renders the glyphs at the specified positions, using the specified attributes. ``` func showCGGlyphs(_ glyphs: UnsafePointer, positions: UnsafePointer, count glyphCount: Int, font: NSFont, textMatrix: CGAffineTransform, attributes: [NSAttributedString.Key : Any] = [:], in CGContext: CGContext) ``` ## Parameters `glyphs` The glyphs to draw, which may include embedded `NULL` bytes. `positions` The positions at which to draw the glyphs in the user space coordinate system. `glyphCount` The number of glyphs to draw. `font` The font to apply to the graphics state. This value can be different from the value in the `attributes` argument because of various font substitutions that the system automatically executes. `textMatrix` The affine transform mapping the text space coordinate system to the user space coordinate system. The `tx` and `ty` components of `textMatrix` are ignored because Quartz overrides them with the glyph positions. `attributes` A dictionary of glyph attributes. For a list of possible keys and values, see [Glyph Attributes](/documentation/AppKit/glyph-attributes). `CGContext` A graphics context object already configured with the information in the `font`, `textMatrix`, and `attributes` parameters ## Discussion The layout manager calls this primitive method when it is time to lay out a set of glyphs in the specified graphics context. --- 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)