Response to a slide

[Greg Osenbach]

David,
That method worked great.  Thanks for the suggestion!

Best Regards,
Greg

On Thu, Feb 26, 2009 at 9:12 AM, David McFarlane <mcfarla9 at msu.edu> wrote:

>
> Greg,
>
> > I have a slide that I am looping through (time out at 100ms).  Each time
> > I change one of the values on the slide (random number).  The subject is
> > supposed to press a key to stop it and then I do some calculations with
> > what ever the random number was at the time.  I would like the subject
> > to do this with the space bar.  When I set the allowable response to
> > {SPACE} and my inline do a check: If Slide1.RESP = " " and I have also
> > tries If Slide1.RESP = chr(32), it does not work.  If I set the
> > allowable response to 1 and do the check If Slide1.RESP = "1", It works
> > perfectly.  I would think that I need something in my if statement other
> > than " " or chr(32).
> >
> > Anyone have any ideas?  Thanks.
>
> BTW, if I were looping through a slide and just wanted to stop when the
> subject responds to any presentation, I might try another EP trick.
> Instead of even getting a response to each slide presentation, I might
> put a Wait object (let's call it ResponseWait) before my slide loop.  I
> would make its Duration 0, set it collect my desired response, and
> (here's the key) set Time Limit to "(infinite)" or the max duration of
> my slide loop.  The PST User's Guide calls this Extended Input, see the
> much overlooked Appendix C.  I would probably also set its End Action to
> Terminate so that it will terminate the current slide when the subject
> responds, unless I wanted to allow the final slide to time-out on its
> own.  Anyway, then in my script or whatever I would just test for a
> response to ResponseWait instead of my slides.
>
> I really don't know if this makes things any better in your case, but I
> had an experiment where this technique solved a lot of problems.
>
> -- David McFarlane, Professional Faultfinder
>
> >
>

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