response button on parallel port
I am starting with opensesame and I would like to create an experience in which the participant should give his response by pressing a button connected to the parallel port (2x2-button response box, V-pixx). There are 4 different buttons connected to the DB-25 Pin No. 1, 2, 14 and 15.
To collect the answers on opensesame, I see only a mouse and a keyboard. How can I collect the corresponding answers to the 4 buttons of my response buttons?
Thanks for your help,