Returns a textual description of a Core Foundation type, as identified by its type ID, which can be used when debugging.
- iOS 2.0+
- macOS 10.0+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
- Core Foundation
An integer of type
CFTypethat uniquely identifies a Core Foundation opaque type.
A string containing a type description. Ownership follows the The Create Rule.
You can use this function for debugging Core Foundation objects in your code. Note, however, that the description for a given object may be different in different releases of the operating system. Do not create dependencies in your code on the content or format of the information returned by this function.