Il Wed, 6 Sep 2017 16:08:07 +0000 Rúben Rodrigues <ruben...@live.com.pt>
scrisse:
> ...
> void on_button_Util_Firmware_Update_clicked(GtkButton *button, gpointer
> user_data)
> {
> GtkLabel *gLabel_Result;
> FILE *fp;
> gchar pcTmp[BUFSIZ];
>
> // Fecha a janela.
> gtk_widget_hide(GTK_WIDGET(gtk_widget_get_toplevel(GTK_WIDGET(button))));
>
> // Mostra a janela de espera.
> gtk_widget_show(GTK_WIDGET(gtk_builder_get_object(builder,
> "Setup_Wait_dialog")));
> sleep(10);
> ...
Hi Rúben,
this is the normal behavior in a single-threaded application: the
user interface is updated only when you release the CPU so that
the execution returns to the main loop:
https://developer.gnome.org/glib/stable/glib-The-Main-Event-Loop.html#glib-The-Main-Event-Loop.description
The rule of thumb is: never block, i.e. never put a `sleep(10)` or
something equivalent in your code otherwise you'll get what you
requested, in that case an unresponsive interface for 10 seconds.
If you have a heavy process, fork to a working thread or decompose
it in a loop that can be run incrementally with an idle callback.
Ciao.
--
Nicola
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