retain
The callback used to retain each value as they are added to the collection. If NULL, values are not retained. See Cfarrayretaincallback for a description of this callback.
Declaration
var retain: CFArrayRetainCallBack!The callback used to retain each value as they are added to the collection. If NULL, values are not retained. See Cfarrayretaincallback for a description of this callback.
var retain: CFArrayRetainCallBack!