text: /* simple.c
   * Copyright (C) 2017  Red Hat, Inc
   * Author: Benjamin Otte
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Library General Public
   * License as published by the Free Software Foundation; either
   * version 2 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Library General Public License for more details.
   *
   * You should have received a copy of the GNU Library General Public
   * License along with this library. If not, see <http://www.gnu.org/licenses/>.
   */
  #include "config.h"
  #include <gtk/gtk.h>
  
  
  static void
  hello (void)
  {
    g_print ("hello world\n");
  }
  
  static void
  quit_cb (GtkWidget *widget,
           gpointer   data)
  {
    gboolean *done = data;
  
    *done = TRUE;
  
    g_main_context_wakeup (NULL);
  }
  
  int
  main (int argc, char *argv[])
  {
    GtkWidget *window, *button;
    gboolean done = FALSE;
  
    gtk_init ();
  
    window = gtk_window_new ();
    gtk_window_set_title (GTK_WINDOW (window), "hello world");
    gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
    g_signal_connect (window, "destroy", G_CALLBACK (quit_cb), &done);
  
    button = gtk_button_new ();
    gtk_button_set_label (GTK_BUTTON (button), "hello world");
    gtk_widget_set_margin_top (button, 10);
    gtk_widget_set_margin_bottom (button, 10);
    gtk_widget_set_margin_start (button, 10);
    gtk_widget_set_margin_end (button, 10);
    g_signal_connect (button, "clicked", G_CALLBACK (hello), NULL);
  
    gtk_window_set_child (GTK_WINDOW (window), button);
  
    gtk_widget_show (window);
  
    while (!done)
      g_main_context_iteration (NULL, TRUE);
  
    return 0;
  }
  