CFTreeRetainCallBack
Callback function used to retain a program-defined information pointer.
Declaration
typealias CFTreeRetainCallBack = (UnsafeRawPointer?) -> UnsafeRawPointer?Parameters
- info:
The program-supplied information pointer provided in a Cftreecontext structure.
Return Value
The value to use whenever the information pointer is retained, which is usually the info parameter passed to this callback, but may be a different value if a different value should be used.