Re: [Qemu-devel] updated -sdl-modifiers patch

[Paul Jakma]

On Fri, 8 Oct 2004, Johannes Martin wrote:

> Hi,
>
> I've updated my sdl-modifiers patch to work with qemu cvs. Some of 
> my changes have been incorporated into qemu cvs (sticky control 
> key), so they are no longer part of my patch.
>
> When you use the -sdl-modifiers command line switch of qemu after 
> applying my patch, qemu will take care of handling CAPS and NUM 
> lock for the OS in a way that's consistent with the host OS 
> behaviour of modifier keys. So host and guest won't disagree on 
> whether caps lock is up or down any more. In some cases this could 
> lead to a crash (happened to me in OS/2).

This seems to work for me. Or at least, no immediate problems. I have 
XKB ctrl:swapcaps option set on my host, and the guest OS often would 
get a stuck caps-lock (caps-lock in guest, ctrl in host). With 0.6.0 
I could usually clear it with enough pressing of ctrl/shift/caps-lock 
(see below), but I could not seem to clear it with CVS from earlier 
this week + this patch + IDE patches, meaning i would have to hold 
'Caps Lock' (unstick, ctrl in host, caps-lock in guest) to get lower 
case.

I've tried to break it with this patch, grabbing and ungrabbing SDL, 
exiting it with sticky key (ie caps-lock LED indicated) on, setting 
it off outside of the qemu window and then entering it again, etc.. 
and I havnt yet gotten it confused. So looks hopeful.

Another note: The guest OS doesnt seem to get the translated (ie 
swapped caps/ctrl) codes, it thinks caps-lock is still caps-lock and 
ctrl ctrl - with one difference, the "stickyness" *is* reversed: ie 
when i press 'Caps Lock' /marked/ key, in the host it is a non-sticky 
ctrl, in the guest it behaves as a non-sticky (I need to keep it held 
down, ie its a bit like a shift key) caps-lock, similarly if i press 
the key marked 'control', i get a sticky caps-lock on the host (and 
caps-lock LED goes on) and the guest OS sees a sticky ctrl key.

I dont know if it would be possible to be able to take XKB 
ctrl:swapcaps into account, it would be /really/ nice if we could.

>         Johannes

regards,
--
Paul Jakma      address@hidden  address@hidden  Key ID: 64A2FF6A
Fortune:
"Why are we importing all these highbrow plays like `Amadeus'?  I could
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