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answers:

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Can someone point me to the correct place to start development of a twain scanning appliation for the MAC osx. I have done some simple objective c development in the past, but nothing interfacing with a device.

A: 

hello there, did you ever find the answer to this question or something pointing you to the beginning stages??

Warren D
A: 

If you're talking about Objective-C and TWAIN on the Mac, this page on the twain.org site has a DMG you can download which contains a sample project called TWAINClientCocoa.

It's from 2002 or something so it requires a little finagling to get it to load and build (rename the .pbproj folder to be a .xcode folder so it will open in Xcode and then do an "upgrade" when you're in Xcode) but it works (just tried it last week) and should give you a good starting point. It relies on the concept of the TWAIN source providing its on GUI but that's something you could modify.

Schnapple