KeyboardProvider for OS X

KeyboardProvider is an app running OS X Snow Leopard and higher (10.6). It monitors your keyboard state and makes it available in the form of a local server. Watch the following video: http://www.youtube.com/watch?v=cFzxoBCgNdg.

Any app can connect to the server by providing by its IP and port, and a very simple C client (~60 lines) is provided for easy set-up. The only code you have to provide is the following:

#include "kbdclient.h"

void init_game() {
    kbdclient_init("127.0.0.1", 53841);
    ...
}

void do_frame() {
    if (kbdclient_held(KEY_LEFT))
        Some action...
}