# CFTreeCopyDescriptionCallBack Callback function used to provide a description of the program-defined information pointer. ``` typealias CFTreeCopyDescriptionCallBack = (UnsafeRawPointer?) -> Unmanaged? ``` ## Parameters `info` The program-supplied information pointer provided in a [`CFTreeContext`](/documentation/CoreFoundation/CFTreeContext) structure. ## Return Value A textual description of `info`. The caller is responsible for releasing this object. ## Discussion --- 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)