[osg-users] X11 keyboard bug (+ ugly fix)

[Bradford, Chase]

I ran into this problem very recently too on a Win32 system.  The solution I had to adopt was checking the modifier keys using the Win32 API's GetKeyState function when processing a key that's affected by modifiers.

I agree that it probably shouldn't be OSG's responsibility to account for this problem.  However, part of the problem stems from OSG attempting to support, given a false sense of security.

On the Windows side, we could explicitly poll a modifier key's state before sending an event off to the EventQueue, without relying on KEYUP/KEYDOWN synchronization.  However, doing something like that would cause inconsistencies between the platforms, and I don't know if the X11 has a counterpart.

Chase

> -----Original Message-----
> From: osg-users-bounces at lists.openscenegraph.org [mailto:osg-users-
> bounces at lists.openscenegraph.org] On Behalf Of Melchior FRANZ
> Sent: Tuesday, February 05, 2008 1:35 PM
> To: osg-users at lists.openscenegraph.org
> Subject: Re: [osg-users] X11 keyboard bug (+ ugly fix)
> 
> * Jean-Sébastien Guay -- Tuesday 05 February 2008:
> > For reference, the same thing happens on Windows,
> 
> Oh, didn't know that.
> 
> 
> 
> > Not sure if OSG should try to work around it or not...
> 
> Well, but it's annoying as hell, and my computer is not
> supposed to annoy me.  :-)
> 
> And again: I never saw that in FlightGear when linked with
> glut or sdl. (We still support all three, but will probably
> go for osgviewer only.)
> 
> m.
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