Re: Problem grabbing motion-notify events.

[<cole-anstey ntlworld com>]

> On Mon, 2006-08-07 at 08:06 +0000, cole-anstey ntlworld com wrote:
> > Hello,
> >
> > I'm having a problem with grabbing motion-notify events when reparenting widgets.  Reparenting appears to 
> > stop you from receiving all of the events.
> > I have written the test application below to highlight the problem.
> >
> > The application reparents a handle box to a window and then reparents it back to the main application 
> > window.
>
> I didn't reviewed the full source code but something that hit my eyes is your re-parenting code. 
>
> You should not take a GtkWidget out of its container without holding a reference to it, as it can be 
> destroyed when you do that.
>
> The steps for re-parenting a widget should be:
>
> g_object_ref()
> gtk_container_remove
> gtk_container_add
> g_object_unref()
>
> But better to try gtk_widget_reparent ().
>
> --
> Iago Rubio

Thank you,

It was just a quick hack.  I'm beginning to think its a problem with the way events are filtered in the gtk 
bowels during a grab.
I've managed to build gtk, gdk and the gtk-demo last night and it appears to run o.k, so I'll try debugging 
it later.
At least now I will be able to turn the GTK_NOTE ouput on.  If it turns out not to be a problem, I should at 
least be able to ascertain the cause.

I'll post my findings here in a few days.


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