# CTFontGetBoundingRectsForGlyphs(_:_:_:_:_:) Calculates the bounding rects for an array of glyphs and returns the overall bounding rectangle for the glyph run. ``` func CTFontGetBoundingRectsForGlyphs(_ font: CTFont, _ orientation: CTFontOrientation, _ glyphs: UnsafePointer, _ boundingRects: UnsafeMutablePointer?, _ count: CFIndex) -> CGRect ``` ## Parameters `font` The font reference. `orientation` The intended drawing orientation of the glyphs. Used to determined which glyph metrics to return. `glyphs` An array of `count` number of glyphs. `boundingRects` On output, the computed glyph rectangles in an array of `count` number of objects. If `NULL`, only the overall bounding rectangle is calculated. `count` The capacity of the `glyphs` and `boundingRects` buffers. ## Return Value The overall bounding rectangle for an array or run of glyphs. Returns on error. ## Discussion The bounding rectangles of the individual glyphs are returned through the `boundingRects` parameter. These are the design metrics from the font transformed in font space. --- 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)