[Gtk-sharp-list] Updating of a window not done right away

[Pedro Guridi]

I'm not sure if we are talking about the same thing.
But what I'm saying, it's for the case when you have a long operation, or
some long while/for, and because of that the gtk main loop will
not be able to update the gui, or receive any event until the loop ends. To
solve that you can add this inside the blocking loop (assuming that runs in
the main thread than Gtk, that's the point after all) :

while (Gtk.Application.EventsPending ())
        Gtk.Application.RunIteration ();


Question.., I guess you are using these: "Thread.Sleep(3000)" for giving the
gtk main thread a time to update the gui, I'm right?.
if this is the case, try putting the code above instead of the
"Thread.Sleep(3000);".

regards,
Pedro

On Wed, Sep 24, 2008 at 4:26 PM, Michael Hutchinson <
m.j.hutchinson at gmail.com> wrote:

> On Wed, Sep 24, 2008 at 4:52 AM, Mathias Tausig <mtausig at fsmat.at> wrote:
> > Am 23. Sep 2008 um 23:43:04 -0400, schrieb Michael Hutchinson:
> >> On Tue, Sep 23, 2008 at 4:51 AM, Mathias Tausig <mtausig at fsmat.at>
> wrote:
> >> > Hy!
> >> >
> >> > I wrote a class DisplayPanel (see below., which should just display
> some text right away. The problem is, it just doesn't do that if I start
> some blocking function after setting the text. If I execute
> >> >
> >> > Gtk.Window w = new Gtk.Window("Test");
> >> > w.Show();
> >> > for(int i=0;i<20;++i){
> >> >        DisplayPanel dp = new DisplayPanel("",w);
> >> >        dp.SetTitle(i);
> >> >        Thread.Sleep(3000);
> >> >        dp.Dispose();
> >> > }
> >> >
> >> > sometimes it does display the correct text right away, but sometimes
> (rather unpredictable, about every third time) I get just an empty Window.
> >> > Does anyone have an idea, what might cause this?
> >>
> >> You're blocking the main loop. The main GTK loop handles repainting,
> >> firing events, etc.
> >
> > I know. But in my class, when calling SetTitle, I have a loop that
> executes RunIteration as foten as neccesary which, as far as I have
> understood the loop, should do all the update, as it is executed before the
> blocking call.
>
> I'm not an expert on that API, but doesn't it just clear the event
> queue and carry on? Ass soon as it's finished you will hit the
> blocking code.
>
> --
> Michael Hutchinson
> http://mjhutchinson.com
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