# Multiple screen support for Windows

**URL:** <https://psychtoolbox.discourse.group/t/multiple-screen-support-for-windows/954>\
**Category:** Uncategorized\
**Created:** [January 23, 2002, 4:58pm UTC](https://psychtoolbox.discourse.group/t/multiple-screen-support-for-windows/954 "2002-01-23T16:58:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**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:** [January 23, 2002, 4:58pm UTC](https://psychtoolbox.discourse.group/t/multiple-screen-support-for-windows/954/1 "2002-01-23T16:58:07Z")

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Does anyone know if and when there is planned multiple-monitor support for  
Windows (I haven't gone over yet; just thinking about the future). In all the  
work I do, use of multiple monitors is pretty central.  
  
thanks, Geoff  
  
Geoffrey R. Loftus, PhD Office: (206) 543-8874  
Department of Psychology Home: (206) 547-6969  
Guthrie Hall, Room 131 Mobile: (206) 605-1974  
University of Washington Fax: (206) 685-3157  
Box 351525 Web: [http://faculty.washington.edu/gloftus](http://faculty.washington.edu/gloftus)  
Seattle, WA 98195-1525

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**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 5, 2002, 2:32am UTC](https://psychtoolbox.discourse.group/t/multiple-screen-support-for-windows/954/2 "2002-02-05T02:32:28Z")

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Dear Allen,  
  
We could really, really use multiple monitor support for the Psychophysics   
toolbox under windows. We would like to display double-size images spread   
across two screens, that we could treat logically as a single window. But   
it would suffice to have access to each screen separately.  
  
Best,  
Ben  
  
At 02:10 PM 1/25/2002 -0800, you wrote:  

> \>Hi Allen, thanks. FYI, I mostly use multiple monitors so that I can   
> \>display the  
> \>stimuli on one while providing relevant interactive information for the  
> \>experimenter on the other.  
> \>  
> \>regards, Geoff  
> \>  
> \>Geoffrey R. Loftus, PhD Office: (206) 543-8874  
> \>Department of Psychology Home: (206) 547-6969  
> \>Guthrie Hall, Room 131 Mobile: (206) 605-1974  
> \>University of Washington Fax: (206) 685-3157  
> \>Box 351525 Web: [http://faculty.washington.edu/gloftus](http://faculty.washington.edu/gloftus)  
> \>Seattle, WA 98195-1525  
> \>  
> \>  
> \>----------  
> \> \>From: "Allen W. Ingling" \<[Allen.Ingling@...](mailto:Allen.Ingling@...)\>  
> \> \>To: [psychtoolbox@yahoogroups.com](mailto:psychtoolbox@yahoogroups.com)  
> \> \>Subject: Re: [psychtoolbox] Multiple screen support for Windows  
> \> \>Date: Thu, Jan 24, 2002, 10:24 PM  
> \> \>  
> \>  
> \> \>  
> \> \>  
> \> \> Geoff Loftus wrote:  
> \> \>  
> \> \>\> Does anyone know if and when there is planned multiple-monitor support for  
> \> \>\> Windows (I haven't gone over yet; just thinking about the future). In   
> \> all the  
> \> \>\> work I do, use of multiple monitors is pretty central.  
> \> \>  
> \> \> Geoff,  
> \> \>  
> \> \> I don't have a schedule for adding multiple monitor support into the   
> \> Windows  
> \> \> version.  
> \> \>  
> \> \> To give some background: The current version of the Psychtoolbox for   
> \> Windows,  
> \>in  
> \> \> the long-term, us a dead end. I am working on a new version of the  
> \>Psychtoolbox,  
> \> \> based on OpenGL, which will eventually supplant the current versions. I  
> \>could  
> \> \> add multiple-display support to the current version, but I'm not sure   
> \> that its  
> \> \> worth investing more effort in code which I plan to abandon. On the other  
> \>hand,  
> \> \> the future version is far-off, and for technical reasons which I won't go  
> \>into,  
> \> \> adding multiple-display support is more problematic than it would be   
> \> with the  
> \> \> current version.  
> \> \>  
> \> \> Apart from your comments, we don't know how urgent and important  
> \>multiple-display  
> \> \> support is to users. This message is going to the forum, so if others   
> \> want to  
> \> \> comment on that, please do.  
> \> \>  
> \> \> Best,  
> \> \>  
> \> \> Allen  
> \> \>  
> \> \>  
> \> \>  
> \> \>  
> \> \> [http://psychtoolbox.org](http://psychtoolbox.org)  
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> \> \> UNSUBSCRIBE by sending a blank message to:  
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> \> \>  
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> \> \>  
> \> \>  
> \>  
> \>  
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Benjamin T. Backus  
Assistant Professor  
Department of Psychology  
University of Pennsylvania