# inputWidth(_:height:pixelAspectRatio:) Returns the width, height, and pixel aspect ratio of the input to the filter or transition for which the on-screen control is applied. ``` func inputWidth(_ inputWidth: UnsafeMutablePointer!, height inputHeight: UnsafeMutablePointer!, pixelAspectRatio: UnsafeMutablePointer!) ``` ## Parameters `inputWidth` A pointer to the input width of the object. `inputHeight` A pointer to the input height of the object. `pixelAspectRatio` A pointer to the input pixel aspect ratio of the object. --- 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)