Re: Help wanted: Implementing Wine dlls that need access to X11 commands.

[Enrico Horn]

Hi,
On Wednesday 15 January 2003 19:09, Robert North wrote:
> Robert North 7ownq0k402-at-sneakemail.com |Wine Mailing Lists| wrote:
> > > >    Now, as it turns out, the methods to interrogate a wintab
> > > >
> > > > message queue are extremely similar to those to interrogate an X11
> > > > message queue.
> > > >            So that's +1 to giving wintab it's own X11 message
> > > > queue. (Or possibly even one X11 msg queue per tablet context!).
> > > >            A simple X11<->wintab mapping can be implemented, and no
> > > > additional queue data structs are needed in the wintab
> > > > implementation.
> > >
> > > I'm not convinced you can avoid managing an event queue for wintab
> > > events; from a quick look at the spec I doubt you can simply map the
> > > wintab functions to X11 queue functions.
> >
> > I'm about to have a final look at this, see if there is a clear mapping
> > from X11 functions to wintab.
> >
> > More on this once I've completed my investigations.
> >
> > One mismatch is that wintab uses a fixed size message queue which can be
> > defined as, as opposed to Wine or X11.
> > (I'm assuming wine or X11 are either extremely large queues, or
> > dynamically sized.).
>
> I've re-checked the X11 code, and you're right, the only sane way to map
> X11 events to a wintab queue is by coding an event queue for wintab.
>
> Thanks
>    -Rob.

Sorry if this seems like a stupid question.
Could you please elaborate what the problems between X11, DirectDraw, OpenGL
and accessing X11 functionality are.
I am not an expert in either area but like to understand the problem.

Thanks
Enrico