Re: [GD-Linux] X mouse/keyboard grabs

I see two things required to achieve what I want:

- Even with an application grab of keyboard/mouse, I need to get a key
combo through .. typically to a deamon. If the X server can't do that
(which is why I was asking), I could probably get it through with sysctl
at kernel level.

- Once you *know* you need to release the grabs, how do you do it? Any way
an X app can force a grab release on some other app? (That one might be
harder to tackle)

TTimo

On Sun, 19 Jan 2003 15:08:11 -0700
"D. Stimits" <[email protected]> wrote:

> Timothee Besset wrote:
> 
> > Hey everyone
> >
> > I am playing with X keyboard/mouse grabs stuff for our next game.
> > Wondering if there's a way to configure the X server (or anything else) so
> > that even with the grabs on in the game you could do a key combo forcing
> > mouse/keyboard release on the application? For instance during a long
> > load, or on a gdb breakpoint etc.
> 
> 
> You might be able to do something that fakes it. There is a rather old 
> but fun utility program you can look at to see what I'm talking about, 
> called x2x. It simply allows a pointer device and keyboard from a 2nd 
> X11 machine to take control of the first machine, but not interfere with 
> the mouse/keyboard of the first machine. It is sort of a poor man's 
> version of Xinerama across two machines, without the copy/paste or other 
> nice things of Xinerama. Basically, even if you can't alter the one 
> device (and you might be able to, I don't know), perhaps you could 
> create two virtual pointer devices, and have the hardware switch which 
> device it talks to at the moment (this would require that mouse and 
> keyboard device events are what are grabbed, and *not* the pointer 
> itself...if the pointer is free to do what it likes, and the 
> mouse/keyboard bindings are not, then tell your mouse/keyboard to attach 
> to a different virtual device which is not limited). Only the first 
> device would have the grab events applied to it. See:
>    http://gatekeeper.dec.com/pub/DEC/SRC/x2x/
> 
> D. Stimits, stimits AT attbi DOT com
> 
> 
> 
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