Keyboard input on OSX

Question

I was wondering if it was possible to read the keyboards input, on OSx from somewhere, such as GNU/Linux with the /dev/input files.

The purpose of this is to make a

Answer 1

Since not all readers have good intentions as you, I won't get into details, but rather point you to the right direction.

As you may know, the WindowServer works over two environments: Carbon (old) and Cocoa (new). These are the respective APIs:

1. Carbon → InstallEventHandler (link is broken due to age? Anyway, the referenced book is Learning Carbon, Chapter 6 - Carbon Events)
2. Cocoa → addGlobalMonitorForEventsMatchingMask