35    gtk_init(
nullptr, 
nullptr);
 
   36    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 
   37    gtk_window_set_title(GTK_WINDOW(window), 
"ns-3 Default attributes.");
 
   38    gtk_window_set_default_size(GTK_WINDOW(window), 600, 600);
 
   41    GtkTreeStore* model = gtk_tree_store_new(
COL_LAST, G_TYPE_POINTER);
 
   46    scroll = gtk_scrolled_window_new(
nullptr, 
nullptr);
 
   47    gtk_container_add(GTK_CONTAINER(scroll), view);
 
   49    GtkWidget* vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 5);
 
   50    gtk_box_pack_start(GTK_BOX(vbox), scroll, TRUE, TRUE, 0);
 
   51    gtk_box_pack_end(GTK_BOX(vbox), gtk_separator_new(GTK_ORIENTATION_HORIZONTAL), FALSE, FALSE, 0);
 
   52    GtkWidget* hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 5);
 
   53    gtk_box_pack_end(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 
   54    GtkWidget* save = gtk_button_new_with_label(
"Save");
 
   56    gtk_box_pack_end(GTK_BOX(hbox), save, FALSE, FALSE, 0);
 
   57    GtkWidget* load = gtk_button_new_with_label(
"Load");
 
   59    gtk_box_pack_end(GTK_BOX(hbox), load, FALSE, FALSE, 0);
 
   60    GtkWidget* exit = gtk_button_new_with_label(
"Run Simulation");
 
   62    gtk_box_pack_end(GTK_BOX(hbox), exit, FALSE, FALSE, 0);
 
   64    gtk_container_add(GTK_CONTAINER(window), vbox);
 
   66    gtk_widget_show_all(window);
 
   72    gtk_widget_destroy(window);
 
 
   82    gtk_init(
nullptr, 
nullptr);
 
   84    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 
   85    gtk_window_set_title(GTK_WINDOW(window), 
"ns-3 Object attributes.");
 
   86    gtk_window_set_default_size(GTK_WINDOW(window), 600, 600);
 
   90    GtkTreeStore* model = gtk_tree_store_new(
COL_LAST, G_TYPE_POINTER);
 
   95    scroll = gtk_scrolled_window_new(
nullptr, 
nullptr);
 
   96    gtk_container_add(GTK_CONTAINER(scroll), view);
 
   98    GtkWidget* vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 5);
 
   99    gtk_box_pack_start(GTK_BOX(vbox), scroll, TRUE, TRUE, 0);
 
  100    gtk_box_pack_end(GTK_BOX(vbox), gtk_separator_new(GTK_ORIENTATION_HORIZONTAL), FALSE, FALSE, 0);
 
  101    GtkWidget* hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 5);
 
  102    gtk_box_pack_end(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 
  103    GtkWidget* save = gtk_button_new_with_label(
"Save");
 
  105    gtk_box_pack_end(GTK_BOX(hbox), save, FALSE, FALSE, 0);
 
  106    GtkWidget* load = gtk_button_new_with_label(
"Load");
 
  108    gtk_box_pack_end(GTK_BOX(hbox), load, FALSE, FALSE, 0);
 
  109    GtkWidget* exit = gtk_button_new_with_label(
"Run Simulation");
 
  111    gtk_box_pack_end(GTK_BOX(hbox), exit, FALSE, FALSE, 0);
 
  113    gtk_container_add(GTK_CONTAINER(window), vbox);
 
  115    gtk_widget_show_all(window);
 
  121    gtk_widget_destroy(window);