Contents

ABAddressBookUnregisterExternalChangeCallback(_:_:_:)

Unregisters a callback.

Declaration

func ABAddressBookUnregisterExternalChangeCallback(_ addressBook: ABAddressBook!, _ callback: ABExternalChangeCallback!, _ context: UnsafeMutableRawPointer!)

Parameters

  • addressBook:

    The address book used to interact with the Address Book database.

  • callback:

    The function to invoke when the Address Book database changes. The signature of the function must match Abexternalchangecallback.

  • context:

    The object to pass to the callback function.

See Also

Deprecated