The high level pointer code doesn't know about Xinerama.
It operates in single logical screen space and assumes it's
moving a cursor over the logical screen with input independent
of the screens (like from a mouse). To make touch screen drivers
Xinerama aware, they would probably need to report their motion
relative to the logical screen. I suppose that might look
something like:
#ifdef PANORAMIX
if(!noPanoramiXExtension) {
/* given x,y on screen n, translate to the logical coordinate */
x += panoramiXdataPtr[n].x;
y += panoramiXdataPtr[n].y;
}
#endif
This is just a guess though. I haven't studied this.
Mark.
On Wed, 10 Aug 2005, DOLLOFF, MATTHEW D. (MATT) (JSC-ER7) (NASA) wrote:
> I am currently trying to run 4 touch screen monitors using Xinerama and am
> encountering a few problems. First of all, each monitor has it's own
> graphics card and is up and running Xinerama without any problems. The
> problem occurs when I try to use the touch capabilities. Every screen
> either a) sends the pointer to the first screen (when I don't specify a
> screen number in the touch portion of the elo driver) or only works when I
> first put the pointer on that screen using the mouse (when I do specify a
> screen number for each device). I am trying to figure out how Xinerama
> deals with pointers so that I can get the pointer to move to the correct
> screen.
>
>
>
> Thanks,
>
> Matt Dolloff
>
>
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