Re: GUI problem.

["Michael Lamothe" <michael lamothe gmail com>]

Hi Alberto,

Sorry, I've accidentally not replied to all.  But to punish myself for
doing this again I'll answer your question myself.

In general, what happens when you write a multi-threaded application
(that is not multi-thread safe) you'll see unpredictable results.
Sometimes you will see a bug, but change a line of unrelated code and
the bug will disappear.  Usually the bug will just manifest itself in
other ways.  This is what I think is happening to you.  UI lock-ups
are a classic sign of a non-multithread safe application.

I can debug your application but I am going to make a recommendation to you,

    Do not update the UI from any other thread other than the main thread!

Take my advice, or leave it, either way I will help you but it's
easier to change your application now, in its infancy, rather than
later.

Typically, multi-threaded applications are really hard to debug
because the offending code is related to the way the whole application
is written.  Do you have a SVN repository or a tarball that you can
send me?

Thanks,

Michael


On 20/11/2007, alberto barbaro <khlero83 gmail com> wrote:
> Now until the various functions works the GUI don't responde and stay in a
> gray state.
> How can I resolv it?
> Thanks
>
>
> 2007/11/20, alberto barbaro < khlero83 gmail com>:
> > Well now it works.
> > Thanks to all.
> >
> >
> > 2007/11/20, alberto barbaro <khlero83 gmail com>:
> >
> > > yes.
> > > gdk_threads_enter()
> > > function();
> > > gdk_threads_leave()
> > >
> > > Have you a complete example? Only a small piace of code where there is
> an GUI's update.
> > > Thanks
> > >
> > >
> > > 2007/11/20, Michael Lamothe < michael lamothe gmail com>:
> > >
> > > > Are you locking with gdk_threads_enter/leave()?
> > > >
> > > > Thanks,
> > > >
> > > > Michael
> > > >
> > > > On 20/11/2007, alberto barbaro <khlero83 gmail com> wrote:
> > > > > Hi. I'm trying to develop a small application.
> > > > >
> > > > > Problem:
> > > > >
> > > > > I have a table with some buttons. I pass the pointer to the table in
> a
> > > > > thread, in that thread i would update the table with a some new
> buttons. The
> > > > > buttons will appeare but are not 'clickable'! Why? if I try return
> thay
> > > > > works but with the mouse no. Someone can help me?
> > > > >
> > > > > Thanks
> > > > > _______________________________________________
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> > > > > gtk-app-devel-list gnome org
> http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
> > > > >