Returns a requested value from a bag.
- iOS 2.0+
- macOS 10.0+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
- Core Foundation
The bag to examine.
The value for which to find matches in
the. The equal callback provided when
thewas created is used to compare. If the equal callback was
NULL, pointer equality (in C, ==) is used. If
value, or any other value in
the, is not understood by the equal callback, the behavior is undefined.
A pointer to
value is not in
the. If the value is a Core Foundation object, ownership follows the The Get Rule.
Depending on the implementation of the equal callback specified when creating
the, the value returned may not have the same pointer equality as