Re: Win32 - handling mainloop while showing modal comon controls

[muppet <scott asofyet org>]

On Apr 13, 2006, at 3:59 AM, Alexander Larsson wrote:

> On Wed, 12 Apr 2006, muppet wrote:
>
> > Alexander Larsson wrote:
> > > Its easy to post this event to the hidden window, and to catch it  
> > > in the
> > > window process for gdk, but this isn't really getting us  
> > > anywhere, as we
> > > were already in the window process. The problem is that we can't  
> > > really
> > > call the gtk mainloop (gtk_main_iteration) from the gdk code,  
> > > because gdk
> > > doesn't link to gtk+.
> >
> > That's not actually a problem.  gtk_main_iteration() is just a thin
> > compatibility wrapper around g_main_context_iteration().  GDK does  
> > have access
> > to GLib.
>
> I guess gtk_events_pending() is the real problem.

Again, not actually a problem, as gtk_events_pending() is implemented  
entirely in terms of GDK_THREADS_(ENTER|LEAVE) and  
g_main_context_pending(), both of which you have access to in  
something that knows only GDK:

  gboolean
  gtk_events_pending (void)
  {
    gboolean result;

    GDK_THREADS_LEAVE ();
    result = g_main_context_pending (NULL);
    GDK_THREADS_ENTER ();

    return result;
  }

As i recall, this works because gdk events show up in the main loop  
from a GSource installed when GDK initializes.  See gtk+/gtk/gtkmain.c.

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