Re: Why doesn't my label show up in the window

[Ardhan Madras <ardhan rocksis net>]

You call sleep() in mainloop causes it block, you can use
g_timeout_*() functions to create event in mainloop in timely manner.
Below I modify your code to implement g_timeout_*() functions.

Note, you must care with subwindow creation, user may still create the
subwindow (by clicking the OK button) although the subwindow is still
displayed.

gboolean destroy_subwindow(GtkWidget *subwindow)
{
        gtk_widget_destroy(subwindow);
        return FALSE;
}

void subroutine(GtkWidget *button, gpointer data)
{
        GtkWidget *subwindow, *label;
        subwindow=gtk_window_new(GTK_WINDOW_TOPLEVEL);
        gtk_window_set_default_size(GTK_WINDOW(subwindow), 400, 50);
        label=gtk_label_new("Label");
        gtk_container_add(GTK_CONTAINER(subwindow),label);
        gtk_widget_show_all(subwindow);
        g_timeout_add (5000, (GSourceFunc) destroy_subwindow, subwindow);
        /* while (g_main_context_iteration(NULL, FALSE)); */
        /* sleep(5); */
        /* gtk_widget_destroy(subwindow); */
        return;
}

Regards


On Sat, Aug 25, 2012 at 3:41 PM, Frank Cox <theatre melvilletheatre com> wrote:
> When I click the button the subwindow shows up but the label is missing in
> action.
>
> I thought that this line --> while (g_main_context_iteration(NULL, FALSE));
>
> would make both the subwindow and the label show up without having to re-visit
> gtk_main(), but obviously that's not the case.  Unsurprisingly the window
> doesn't show up at all without that line but what happened to the label?
>
> --
> MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com
> www.creekfm.com - FIFTY THOUSAND WATTS of POW WOW POWER!
>
> _______________________________________________
> gtk-app-devel-list mailing list
> gtk-app-devel-list gnome org
> https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list