# track USB Joystick trace **URL:** \ **Category:** Uncategorized\ **Created:** [February 22, 2011, 9:09pm UTC](https://psychtoolbox.discourse.group/t/track-usb-joystick-trace/522 "2011-02-22T21:09:15Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Allen\_Ingling](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Allen\_Ingling](https://psychtoolbox.discourse.group/u/Allen_Ingling)\ **Post date:** [February 22, 2011, 9:09pm UTC](https://psychtoolbox.discourse.group/t/track-usb-joystick-trace/522/1 "2011-02-22T21:09:15Z")
Hi, does anybody know how to display and track the trace of a joystick (similar to a mousetrackball trace) using Psychtoolbox on Mac? Is there any Demo script ? I would like to track Joystick movements into 8 different directions on a computer screen (left, right, up, down, up left, up right, dow left, down right). Thanks for any help, Liane. ---
**Author:** ![adwkiwi](https://avatars.discourse-cdn.com/v4/letter/a/839c29/32.png) [@adwkiwi](https://psychtoolbox.discourse.group/u/adwkiwi)\ **Post date:** [March 3, 2011, 1:55pm UTC](https://psychtoolbox.discourse.group/t/track-usb-joystick-trace/522/2 "2011-03-03T13:55:00Z")
I've never used it because I'm PC based\*, but the PTB for Mac implements 'GamePad', the human-interface device reading bit of the Mac OS. If you search the PTB help for GamePad you should have access to everything you need. -andrew \*Well, I used it briefly while some colleagues were still on Macs. It's fairly straightforward, it's just been years since I looked at it :) > --- In [psychtoolbox@yahoogroups.com](mailto:psychtoolbox@yahoogroups.com), "Liane" \ wrote: > \> > \> Hi, > \> does anybody know how to display and track the trace of a joystick (similar to a mousetrackball trace) using Psychtoolbox on Mac? Is there any Demo script ? I would like to track Joystick movements into 8 different directions on a computer screen (left, right, up, down, up left, up right, dow left, down right). > \> Thanks for any help, > \> Liane. > \>