[Spice-devel] [Qemu-devel] Re: paravirtual mouse/tablet

[Alon Levy]

On Fri, Jan 14, 2011 at 10:48:50AM +0000, Daniel P. Berrange wrote:
> On Fri, Jan 14, 2011 at 09:49:40AM +0100, Gerd Hoffmann wrote:
> > >>>That maybe implies that we need an offscreen coordinate for the
> > >>>mouse so that you can hide the mouse when it leaves one window.
> > >>
> > >>Hmm? I fail to see why multihead is special here.
> > >
> > >If you show two mice in the guest, would X render two cursors?
> > 
> > With two mice you still have just one cursor.  Just plug a usb mouse
> > into your laptop, you can move the single pointer with both usb
> > mouse and touchpad then.  Didn't try what happens with two tablets,
> > but I expect it wouldn't be different ...
> 
> NB having all mice bound to one cursor is merely the historical
> default behaviour. IIUC the recent "Multi-Pointer X" feature
> lets you now have multiple cursors, one per pointing device.
> 
> https://secure.wikimedia.org/wikipedia/en/wiki/Multi-Pointer_X

Yes, you can enable that, and if we want to have multiple pointers then
they shouldn't disappear - that would be the case if multiple users
where connected, each with their own cursor. You expect the non active cursor
to remain (maybe X hides it after some seconds of inactivity, guest
specific).

> 
> Regards,
> Daniel
>