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I'm trying to know which record update in AddressBook to modify it in my app. Because if user have many contacts that will let the app get slower so I need to know how to get the specific one that update?

  ABAddressBookRef book = ABAddressBookCreate();
    ABAddressBookRegisterExternalChangeCallback(book, addressBookChanged, (__bridge void *)(self));

  void addressBookChanged(ABAddressBookRef reference,
                            CFDictionaryRef dictionary,
                            void *context){}
Sanoj Kashyap
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Omarj
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  • I suggest reading the official documentation: http://developer.apple.com/library/ios/ipad/#documentation/ContactData/Conceptual/AddressBookProgrammingGuideforiPhone/Chapters/BasicObjects.html – Lefteris Dec 27 '12 at 02:25
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    read it found nothing :( – Omarj Dec 27 '12 at 08:25

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