1. The book is copyrighted, but you can download the source book from here:
http://www.syncfusion.com/resources/...ks/objective-c
2. Go the the Introduction page and under the "The Objective-C Language" section and you will see the "code" shown in my message and in the screenshots attached to first message.
3. Now, convert it to EPUB using default settings (or for the iPad 3)
4. Open the EPUB version and go to the same page. The "code" will not have the same color formatting. It will all be black text.