Labels:text | font | screenshot | letter | paper | document OCR: Black BoxU ser ' S Guide Tech Talk In this section, I will give a brief technical overview of how Black Box does what it does. If you're not interested, you don't have to read it, you're not missing out on anything you needto know. Black Box was written using Symantec's THINK C™ 4.0, it is the most amazing programming environment I have ever used. It is the first C program I have written that is actually useful, it was a great way to learn the language. About 70% of Black Box was written using THINK C's inline Assembler, because I wanted it to slow the system down as little as possible. Black Box does its magic by patching traps. This means that I graft my code onto the Mac's ROM code using the toolbox function SetTrapAddress . Black Box patches the following traps: _ InitGraf, _ InitWindo ...