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Re: More on Undo and Redo

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Re: More on Undo and Redo

Subject: Re: More on Undo and Redo
From: Jerry Krinock <email@hidden>
Date: Thu, 19 Feb 2009 21:12:04 -0800

Yes, that changing colors back and forth thing in Apple's sample code is a degenerate case which makes undo/redo look much simpler than it really is in many cases. The real story is explained in this "classic post" by Bill Cheeseman.

http://www.cocoabuilder.com/archive/message/cocoa/2002/7/12/61349

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References:  
  >More on Undo and Redo (From: Randall Meadows <email@hidden>)
  >Re: More on Undo and Redo (From: Graham Cox <email@hidden>)




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