Re: [Xen-devel] [PATCH] Paravirt framebuffer backend tools [2/5]

[Anthony Liguori <aliguori@xxxxxxxxxxxxx>]

Steven Smith wrote:
> > > First: I now agree with you that scancodes are a better choice than
> > > keysyms, and that I was wrong initially.
> > >       
> > The problem with scancodes is that you cannot always get scancodes from 
> > the viewer.  You can get scancodes from SDL but you can only get keysyms 
> > from VNC.  We would have to map VNC keysyms (which are just Xk keysyms) 
> > to scancodes?
> >     
> Ian just pointed out that there's some code in rdesktop to do just
> that.  xkeymap.c contains stuff to pull the keymap out of the X
> server, parse it up, and then do keysym->scancode translation.  Of
> course, choosing a suitable keymap isn't entirely trivial, since the
> server can't see what keymap the client's using.
>   
There is also code in QEMU that does the translation.  In fact, the QEMU 
code is based on the rdesktop tables :-)
Since the QEMU tables are already installed (in /usr/share/qemu/keymaps) 
I suppose it's best to use those.
Regards,

Anthony Liguori

> Steven.
>   

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