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AbAddressBook can not be used on OSX.
The implementation seems to be the one from IOS.
This problem occurrs with version 126.96.36.199 of MonoMac.
Got a sample that is failing for you?
If i try to create a instance of ABAddressBook i get a EntryPointNotFoundException
at (wrapper managed-to-native) MonoMac.AddressBook.ABAddressBook.AbAddressBookCreate() <0x00063>
at MonoMac.ABAdressBook..ctor() <0x00023>
This is the Code I'm calling:
MonoMac.AddressBook.ABAddressBook book = new MonoMac.AddressBook.ABAddressBook();
Addtionally i read the Address Book Programming Guide for Mac OS X from Apple and did not found the used functions e.g. searchElementForProperty(...)
Yes, it looks like the AddressBook API on MacOS uses an Objective-C API, while the iOS code that we used uses a C-based API.
Will need to look into this.
The new Contacts API introduced by Apple obsoletes the address book API, so it is doubtful we'd bind it at this point.