# getControlPoint(at:values:) Returns the control point for the specified index. ``` func getControlPoint(at idx: Int, values ptr: UnsafeMutablePointer) ``` ## Parameters `idx` An integer specifying the index of the control point to return. `ptr` A pointer to an array that, upon return, will contain the x and y values of the specified point. ## Discussion The value of `index` must be between 0 and 3. --- 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)