Framework
All other Core Foundation opaque types derive from CFType. The functions, callbacks, data types, and constants defined for CFType can be used by any derived opaque type. Hence, CFType functions are referred to as “polymorphic functions.” You use CFType functions to retain and release objects, to compare and inspect objects, get descriptions of objects and opaque types, and to get object allocators.
CFGetReturns the allocator used to allocate a Core Foundation object.
CFGetReturns the reference count of a Core Foundation object.
CFMakeMakes a newly-allocated Core Foundation object eligible for garbage collection.
CFReleaseReleases a Core Foundation object.
CFRetainRetains a Core Foundation object.
CFEqualDetermines whether two Core Foundation objects are considered equal.
CFHashReturns a code that can be used to identify an object in a hashing structure.
CFCopyReturns a textual description of a Core Foundation object.
CFCopyReturns a textual description of a Core Foundation type, as identified by its type ID, which can be used when debugging.
CFGetReturns the unique identifier of an opaque type to which a Core Foundation object belongs.
CFShowPrints a description of a Core Foundation object to stderr.
CFHashA type for hash codes returned by the CFHash function.
CFTypeA type for unique, constant integer values that identify particular Core Foundation opaque types.
CFTypeAn untyped "generic" reference to any Core Foundation object.
The CFFileDescriptor provides an opaque type to monitor file descriptors for read and write activity via CFRunLoop.
CFStringTokenizer allows you to tokenize strings into words, sentences or paragraphs in a language-neutral way. It supports languages such as Japanese and Chinese that do not delimit words by spaces, as well as de-compounding German compounds. You can obtain Latin transcription for tokens. It also provides language identification API.