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[solved] mouse coordinates with a touchscreen

edited May 2013 in OpenSesame

Hi everybody,

I am new to opensesame and new to this forum. I am developping a pointing task using a touchscreen and try to get the finger position using the mouse inputs. I already found outstanding help on this forum but I still have some troubles. Using inline scripts or the mouse response item, I get different coordinates if I allow the cursor to be visible or not. When pointing to the center of the screen, it seems that the coordinates are correct only when the cursor is visible. Obviously I would prefer to hide the mouse cursor during the experiment. Any idea about that?
Thank you very much.



  • edited 4:03AM

    Hi Patrice,

    As per great coincidence, I've been working on a task for a tablet-pc (an Asus B121 running Windows 7) today as well. What I found is that using PyGame my mouse coordinates were really messed up (it seemed like only a little window within the entire display was recognized as the entire display), but when using PsychoPy this problem wasn't there.

    I have to admit that this wasn't using OpenSesame, but I do not expect OpenSesame to behave any different. Therefore you might want to try different back-ends (especially the psycho back-end) to see if that fixes your problem.

    Mouse visibility is something I haven't tested, by the way. Might be something to try out as well for my task (so thanks for that tip!).

    Good luck!


  • edited 4:03AM

    Hi Edwin,

    Thank you for the advice. It works much better with the PsychoPy back-end.


  • edited 4:03AM

    That's great! I'll mark this as solved.

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