# CTRunGetPositions(_:_:_:) Copies a range of glyph positions into a user-provided buffer. ``` func CTRunGetPositions(_ run: CTRun, _ range: CFRange, _ buffer: UnsafeMutablePointer) ``` ## Parameters `run` The run from which to copy glyph positions. `range` The range of glyph positions to copy. If the length of the range is set to `0`, then the copy operation will continue from the start index of the range to the end of the run. `buffer` The buffer to which the glyph positions are copied. The buffer must be allocated to at least the value specified by the range’s length. --- 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)