Resize window

David McFarlane mcfarla9 at msu.edu
Fri Sep 10 21:15:49 UTC 2010


Annika,

I still think that you should contact PST Web Support with this and 
see what they say.

Other than that, if it were me then at this point I would resort to 
some sort of low-tech kludge.  E.g., feed both the EP video and the 
web cam video output into some sort of video switch box that goes to 
the one display monitor, then see if I can use some digital I/O 
output (e.g., the lpt port) to have EP control which video goes 
through the switch to the display; or in a pinch, if display switch 
timing is not critical, just flip the switch as needed by hand; or 
use two displays and physically move a mirror to show one display or 
the other.  IOW, I would just try to think "outside the EP box" to 
get a working solution to this.

OK, I am late getting home for the weekend now, I have a fish dinner 
waiting and then a symphony concert tonight, so off I go...

-- David McFarlane, Professional Faultfinder


>Hi David,
>
>Thanks a lot for your quick reply.
>I had thought of using a dual display, but I am not sure if I could
>make this work in the scanner. I am also afraid that the two display
>screens would end up being too small to be clearly visible (the same
>would probably apply to showing the experiment and the desktop
>simultaneously, on second thought).
>Perhaps it would be easier if I explained what I would like to do: At
>certain points during my experiment, subjects need to receive direct
>video feedback from a webcam (connected to the computer that runs E-
>Prime).
>I cannot use the movie object for this purpose, because it can only
>play saved (not live) video clips. I considered calling a dll routine
>to bring up the webcam (in the same runtime environment), but this
>would probably interfere with E-Prime. Finally, I tried to turn on the
>webcam, start the experiment, and then bring the webcam to the
>foreground at specific time points. The problem is that E-Prime quits
>as soon as it is no longer in the foreground (runtime error 11011).
>Do you know if there is a way (e.g., using an inLine) to keep E-Prime
>running in the background? That way I could call the webcam to the
>foreground (and push it back to the background again a few seconds
>later), without having the experiment quit in the mean time.
>
>I appreciate your help,
>
>Annika
>
>
>On Sep 10, 2:49 pm, David McFarlane <mcfar... at msu.edu> wrote:
> > Annika,
> >
> > Stock reminder:  1) I do not work for PST.  2) PST's trained staff
> > takes any and all questions 
> athttp://support.pstnet.com/e%2Dprime/support/login.asp, and they
> > strive to respond to all requests in 24-48 hours (although current
> > estimates are more like 10 days) -- this is pretty much their
> > substitute for proper documentation, so make full use of it.  3) If
> > you do get an answer from PST Web Support, please extend the courtesy
> > of posting their reply back here for the sake of others.
> >
> > That said, here is my take...
> >
> > Hmm, interesting thought.  I don't see any hope of doing that in
> > E-Prime, but I would be glad to be found wrong.  You can, of course,
> > set E-Prime's display resolution to whatever you like, but that
> > always still takes up the full display.
> >
> > As an alternative, I suppose you might use a dual physical display,
> > so that E-Prime would take up one display screen, and you would still
> > have a desktop visible on the other display screen.
> >
> > -- David McFarlane, Professional Faultfinder
> >
> > >I was wondering whether you can change the size of the window in which
> > >the experiment is run.  Is there a way to let E-Prime take up only,
> > >say, half the computer screen, so that you can still see (half) the
> > >desktop in the background while running the experiment?
> > >Thanks,
> > >Annika

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