Re: update a progress bar from a thread

[Iago Rubio <iago iagorubio com>]

You must use gdk_threads_enter and gdk_threads_leave surrounding any UI
change on the thread, to acquire the gdk global mutex.

On Mon, 2006-05-15 at 13:50 +0200, nik600 wrote:
> hi
>
> i upgrade a progress bar from the body of a thread with the following code:
>
> void *body_monitor_avanzamento(void *args){
>   monitor_avanzamento *m=(monitor_avanzamento *)args;
>
>
>   float avanzamento=0.0;
>
>   while(avanzamento<1){
>
>     avanzamento=(float)*(m->db->counter_shared)/(float)m->tot_pacchetti;
 
      gdk_threads_enter();

>     gtk_progress_bar_set_fraction ((GtkProgressBar
> *)m->scroll_avanzamento_simulazione,avanzamento);

      gdk_threads_leave()

>     gtk_widget_show(m->scroll_avanzamento_simulazione);

//    ^^^^^This is not needed

>     sleep(1);
>   }
> }
>
> it works, but i can see the progress bar update only when i go with
> the mouse over the progress bar, maybe i have to call another update
> function?
>
> i've also tried to make a  gtk_widget_show_all of the windows, but
> without any result...
>
> thanks nik