CFDictionaryCopyDescriptionCallBack
Prototype of a callback function used to get a description of a value or key in a dictionary.
Declaration
typealias CFDictionaryCopyDescriptionCallBack = (UnsafeRawPointer?) -> Unmanaged<CFString>?Parameters
- value:
The value to be described.
Return Value
A text description of value.
Discussion
This callback is passed to CFDictionaryCreate(_:_:_:_:_:_:) in a CFDictionaryKeyCallBacks structure or CFDictionaryValueCallBacks. This callback is used by the CFCopyDescription(_:) function.