# CFAttributedStringGetAttributeAndLongestEffectiveRange(_:_:_:_:_:) Returns the value of a given attribute of an attributed string at a specified location. ``` func CFAttributedStringGetAttributeAndLongestEffectiveRange(_ aStr: CFAttributedString!, _ loc: CFIndex, _ attrName: CFString!, _ inRange: CFRange, _ longestEffectiveRange: UnsafeMutablePointer!) -> CFTypeRef! ``` ## Parameters `aStr` The attributed string to examine. `loc` The location in `str` at which to determine the attributes. It is a programming error for `loc` to specify a location outside the bounds of `str`. `attrName` The name of the attribute whose value you want to determine. `inRange` The range in `str` within which you want to find the longest effective range of the attributes at `loc`. `inRange` must not exceed the bounds of `str`. `longestEffectiveRange` If not `NULL`, upon return contains the maximal range within `inRange` over which the exact same set of attributes apply. The returned range is clipped to `inRange`. ## Return Value A dictionary that contains the attributes of `str` at the specified location. Ownership follows the [The Get Rule](https://developer.apple.com/library/archive/documentation/CoreFoundation/Conceptual/CFMemoryMgmt/Concepts/Ownership.html#//apple_ref/doc/uid/20001148-SW1). ## 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)