I would like to implement a simple AR desktop application. This application should first recognize a marker out of a set of pre-registered ones, and then, show on screen some particular information related to the detected marker.
I was thinking on using ARToolkit, even if it is quite old and not anymore supported.
I found an interesting article here http://mycodelog.com/2010/03/23/printw/.
It easily explains how to implement a "printw" function that works exactly like printf.