Macintosh toobox - Aronnax9000/WatchmakerSuite GitHub Wiki

The Macintosh toolbox is a set of Pascal interfaces (constants, types, procedures, and functions) developed for the Classic Macintosh, for use with compilers using the Macintosh Pascal flavor of Pascal.

The toolbox was upgraded to the Universal Pascal Interfaces (UPI) after the release of Blind Watchmaker.

The Macintosh toolkit is documented in the multi-volume Inside Macintosh series of books from Apple Computer.