Re: Widget Updates

[Harring Figueiredo <harringf yahoo com>]

  If you are using threads, you might want to take a look at GTK and threads
FAQs. It is on the GTK site (www.gtk.org). Look for gtk_threads_enter() and
gtk_threads_leave().

  The other thing I see there is:
  "str_val[0] = something() + '0';"

   It does not look like it is something that you want to do. Maybe a strcpy ?

   The other thing is that you can used a single thread program and register
the fuction to be called ( gtk_timeout_add() or If using GTK2.0 , take a look
at IOChanel)

 Hope this help.

  

  
--- Francisco Sant'Anna <chico santanna uol com br> wrote:
> Hello,
>
> I have several labels that should have their text properties updated by
> a thread every second.
>
> The simplified thread code is below:
>
> while (1)
> {
>         for (i=1; i<=TOTAL_BITS; i++)
>         {
>                 str_val[0] = bit_value(i) + '0';
>                 gtk_label_set_text(GTK_LABEL(gui_pins[i]), str_val);
>                 printf("%s | ", str_val);
>         }
>         printf("\r");
>         fflush(stdout);
>         sleep(1);
> }
>
> The printf() part is working as expected, but the gtk_label_set_text()
> is not.
>
> The labels sometimes gets updated, sometimes not.
>
> Reading the archives I saw something that I should use like:
>
> while (g_main_iteration(FALSE));
>
> Sorry, but I have no knowlodge in GUI programming, so I have no idea
> where and why this line should be used.
>
> If you could, please:
>
> 1: Give me a simple workaround to make that work.
> 2: A simple explanation of what is going on and references to implement
> it right in a near future.
>
> Thank you very much for any answer.
>
> And thank you for a very nice GUI API in pure C.
>
> -- 
> -chico
>
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> gtk-app-devel-list mailing list
> gtk-app-devel-list gnome org
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