CFBagCopyDescriptionCallBack
Prototype of a callback function used to get a description of a value in a bag.
Declaration
typealias CFBagCopyDescriptionCallBack = (UnsafeRawPointer?) -> Unmanaged<CFString>?Parameters
- value:
The value to be described.
Return Value
A textual description of value. Ownership follows the The Create Rule.
Discussion
This callback is passed to CFBagCreate(_:_:_:_:) in a CFBagCallBacks structure. This callback is used by the CFCopyDescription(_:) function.