# CFStringCreateWithPascalString(_:_:_:) Creates an immutable CFString object from a Pascal string. ``` func CFStringCreateWithPascalString(_ alloc: CFAllocator!, _ pStr: ConstStr255Param!, _ encoding: CFStringEncoding) -> CFString! ``` ## Parameters `alloc` The allocator to use to allocate memory for the new string. Pass `NULL` or [`kCFAllocatorDefault`](/documentation/CoreFoundation/kCFAllocatorDefault) to use the current default allocator. `pStr` The Pascal string to be used to create the string. `encoding` The encoding of the characters in the Pascal string. ## Return Value An immutable string containing `pStr`, or `NULL` if there was a problem creating the object. Ownership follows the [The Create Rule](https://developer.apple.com/library/archive/documentation/CoreFoundation/Conceptual/CFMemoryMgmt/Concepts/Ownership.html#//apple_ref/doc/uid/20001148-103029). ## Discussion This function creates an immutable CFString objects from the character contents of a Pascal string (after stripping off the initial length byte). --- 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)