Re: Managing keyboard variants

[Murray Cumming <murrayc murrayc com>]

On Fri, 2009-09-25 at 10:30 +0000, Sever P A wrote:
> 2009/9/25 Sever P A <gnu sever gmail com>:
> > 2009/9/20 Murray Cumming <murrayc murrayc com>:
> >> On Sat, 2009-09-19 at 10:04 +0200, Sever P A wrote:
> >>> * Are the same the value of xkl_engine_get_instance (Display *
> >>> display) [of LibXklavier] than the value pointed of
> >>> Gtk::Main::instance() ...?
> >>
> >> No, they are entirely unrelated.
> >>
> >> Googling suggests that you can use GDK_DISPLAY() to get the Display*.
> >> Thats an X Windows thing.
> >> http://developer.gimp.org/api/2.0/gdk/gdk-X-Window-System-Interaction.html#GDK-DISPLAY:CAPS
> >
> > Thanks to Murray Cumming's answer, and after a few reading of the API
> > reference, I done,
> >
> >        Gdk::Display dpy;
> >        XklEngine * engine;
> >        engine = xkl_engine_get_instance(dpy.get_default());
> >
> > But the compiler tells me,
> >
> > error: cannot convert ‘Glib::RefPtr<Gdk::Display>’ to ‘Display*’ for
> > argument ‘1’ to ‘XklEngine* xkl_engine_get_instance(Display*)’
> >
> > What's wrong ?... Are the pointer "*" and "Glib::RefPtr" not the same
> > ?... Could be solved anyway ?...

No, of course they are not. You are missing some basic C and C++
knowledge.

gobj() can help in this kind of situation - see the Basics chapter of
the gtkmm book.

But you should just use  GDK_DISPLAY, as I suggested.

> Ups ! sorry, I just see that it's not also possible to do
> 
>     Gdk::Display dpy;
> 
> What do you suggest ?

I doubt that you'll be able to use the xkl API without learning more
about C and C++.

-- 
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www.murrayc.com
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