For Carbon Developers

Carbon Documentation

Carbon Porting Guide PDF

Provides information that will help you convert your existing Mac OS applications into Carbon applications that can run on Mac OS X as well as on previous versions of Mac OS (version 8.1 or later).

You can access the Carbon Specification at http://developer.apple.com/techpubs/carbon/Carbon_Specification/CarbonSpecTOC.html.
 

Core Foundation Documentation

Home Page (HTML)

Core Foundation is a set of services and programming interfaces, written in C, that assists in internationalization, enables operating-system independence, and facilitates the sharing of data and code among Mac OS 8, Mac OS 9, Mac OS X, and Cocoa applications and libraries.

Up-to-date conceptual, task, and reference documentation for Core Foundation services is also published on the Apple Developer website (http://developer.apple.com/macosx/).