CFArrayCopyDescriptionCallBack
Prototype of a callback function used to get a description of a value in an array.
Declaration
typealias CFArrayCopyDescriptionCallBack = (UnsafeRawPointer?) -> Unmanaged<CFString>?Parameters
- value:
The value to be described.
Return Value
A textual description of value. The caller is responsible for releasing this object.
Discussion
This callback is passed to CFArrayCreate(_:_:_:_:) in a CFArrayCallBacks structure. This callback is used by the CFCopyDescription(_:) function.