[Qt-creator] How to take inputs from two keybaords for different dialog boxes

eike.ziller at nokia.com eike.ziller at nokia.com
Wed May 16 12:29:03 CEST 2012


Install libxi-dev and compile Qt with configure -xinput <...> I suppose.
But you should move this discussion to the interest at qt-project.org mailing list, since it is a general Qt/X11 issue, not related to Qt Creator the IDE.

Br, Eike

On 16 May 2012, at 11:59, ext Navneet Kataria wrote:

> How to get xinput2 support in Qt-for-Desktop ?
>  
> I had seen in http://doc.qt.nokia.com/4.7-snapshot/requirements-x11.html that there is support for X11 Input Extensions. But how to enable/use it for Desktop edition of Qt ?
>  
> I had checked that this support is enabled for harmattan version; but I want these features for desktop.
>  
> Can some-body help me in this regard ?
>  
> Thanks In Advance,
> Navneet Kataria
> 
> 
> --- On Fri, 11/5/12, Navneet Kataria <ennavneet at yahoo.com> wrote:
> 
> From: Navneet Kataria <ennavneet at yahoo.com>
> Subject: Re: [Qt-creator] How to take inputs from two keybaords for different dialog boxes
> To: qt-creator at qt-project.org
> Cc: "Atlant Schmidt" <aschmidt at dekaresearch.com>
> Date: Friday, 11 May, 2012, 4:08 PM
> 
> Hello,
>  
> I got the solution for Linux. Now how to do it using Qt ?
>  
> Actually I tried xinput as mentioned in the article :->
> https://www.linux.com/learn/tutorials/542356-weekend-project-zap-your-coworkers-minds-with-multi-pointer-x
>  
> I got two pointers for two mouse and two keyboards as master. I opened two terminals and was able to type on both of them using different keyboards.
>  
> Now the problem is that How to give support of using two different keboards in one Qt application.
> I can use them in two different processes without any problem, but how to use them in one single process ?
> Can any-body help ?
>  
> __________________
> Thanks and Regards,
> Navneet Kataria
> 
> --- On Thu, 10/5/12, Navneet Kataria <ennavneet at yahoo.com> wrote:
> 
> From: Navneet Kataria <ennavneet at yahoo.com>
> Subject: RE: [Qt-creator] How to take inputs from two keybaords for different dialog boxes
> To: "Atlant Schmidt" <aschmidt at dekaresearch.com>
> Date: Thursday, 10 May, 2012, 4:20 PM
> 
> Ahh!!
>  
> May be, I got it !! First I have to distigish the two keyboards, then-only I can proceed to the main problem (if it remains).
>  
> Thanks Atlant !
> I will get back to this thread after trying the above suggestion !
> 
> _________________
> Thanks and Regards,
> Navneet Kataria
> 
> --- On Thu, 10/5/12, Atlant Schmidt <aschmidt at dekaresearch.com> wrote:
> 
> From: Atlant Schmidt <aschmidt at dekaresearch.com>
> Subject: RE: [Qt-creator] How to take inputs from two keybaords for different dialog boxes
> To: "'Navneet Kataria'" <ennavneet at yahoo.com>, "qt-creator at qt-project.org" <qt-creator at qt-project.org>
> Date: Thursday, 10 May, 2012, 4:03 PM
> 
> Navneet:
>   
>   This sounds like a Linux problem rather than a Qt problem.
> 
>   Isn’t it the Linux Keyboard Driver that’s effectively “pairing”
>   the keyboards? That is, by the time Qt gets the I/O, the
>   input from the two keyboards is already deliberately
>   indistinguishable.
> 
>   There’s probably already some Linux setup parameter
>   somewhere that can un-do this, or, as is always true, if
>   the feature isn’t already there, you can hack the Linux
>   drivers.
>   
>   This page seems to be a nice general reference:
>   
>     http://gunnarwrobel.de/wiki/Linux-and-the-keyboard.html
>   
>   This page seems to go pretty directly to your question:
>   
>     http://linuxgazette.net/124/smith.html
>   
>   Together, they may give you some ideas. Once the Linux problem
>   is solved, *THEN* it can become a Qt problem.
>   
>                                              Atlant
>   
> From: qt-creator-bounces+aschmidt=dekaresearch.com at qt-project.org [mailto:qt-creator-bounces+aschmidt=dekaresearch.com at qt-project.org] On Behalf Of Navneet Kataria
> Sent: Thursday, May 10, 2012 05:52
> To: qt-creator at qt-project.org
> Subject: [Qt-creator] How to take inputs from two keybaords for different dialog boxes
>  
> Hello All,
>  
> I am using Qt from some-time now. But stuck with one requirement as explained below. Can any-body help me in this regard ?
>  
> I need to connect two keyboards to one Linux machine running a Qt desktop application.
>  
> When I inserted two keyboards in the system, they were working well. But the problem is that they are working as one.
>  
> I am developing an application using Qt 4, which contains two text-areas in two different simulatenously opened different dialog boxes. I want to use different keyboards for both text-areas. I mean, I want to use Key-board-1 to input text in TextArea1 and Key-board-2 to input text in TextArea2.
>  
> Is it possible ?
>  
>  
> 
> _________________
> Thanks and Regards,
> Navneet Kataria
>   
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-- 
Eike Ziller
Principal Software Engineer

Nokia, Qt Development Frameworks

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