A customized callback function that keychain services call when a keychain event has occurred.
- macOS 10.2+
A pointer to a structure of type
Sec. This structure provides your callback with information about the keychain event.
Keychain Callback Info
A pointer to application-defined storage that your application previously passed to the function
Sec. You can use this value to provide information that the callback function needs in order to properly handle the event, such as an object on which the callback function should call a method.
Keychain Add Callback(_: _: _:)
A result code. See Codes.