Re: [Qemu-devel] Grabless pointer

[malc]

On Thu, 9 Feb 2006, Brad Campbell wrote:

> I wrote a userspace touchscreen driver years ago that worked on win95-> and 
> would probably still work on the latest and greatest.. it was actually a 
> userspace application that talked to the touchscreen over rs232.. I could 
> probably modify that to work here..
>
> I'm gathering that if I read from 0xbad I'm going to get the absolute mouse 
> position and by writing to 0xbad I can turn the sdl cursor on or off..

Reading part is correct, writing part is not, code is simple and can
explain things better than words.

> What happens with mouse clicks? do they still come over the ps2 interface?
> To make this work with what I have in mind we'd have to disable the ps2 
> position updates to the guest when the mouse app starts on the client and use 
> the read port to give position updates. We would still pass the clicks 
> through the ps2 interface however.

Everything still goes over the ps2 interface, but relative coordinates are
just ignored.

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