/* * * Sample Code for Gtk+ Programming in C, 1st Edition, Prentice Hall * * Copyright 2000 - 2002 Syd Logan, All Rights Reserved * * This code is distributed without warranty. You are free to use this * code for any purpose, however, if this code is republished or * redistributed in its original form, as hardcopy or electronically, * then you must include this copyright notice along with the code. * * Questions or comments regarding this code or any bugs it contains can * be directed to the author via e-mail at slogan@cts.com **/#include <gtk/gtk.h>static GtkWidget*make_tree (GtkWidget *window){  GtkWidget *root, *subtree, *node, *node1, *node2, *node3;  root = gtk_tree_new();  gtk_widget_show( root );  node1 = node = gtk_tree_item_new_with_label("Fish");  gtk_tree_append(GTK_TREE(root), node);  gtk_widget_show(node);	  node2 = node = gtk_tree_item_new_with_label("Invertebrates");  gtk_tree_append(GTK_TREE(root), node);  gtk_widget_show(node);	  node3 = node = gtk_tree_item_new_with_label("Mammals");  gtk_tree_append(GTK_TREE(root), node);  gtk_widget_show(node);	  subtree = gtk_tree_new();  gtk_widget_show( subtree );  node = gtk_tree_item_new_with_label("Great White Shark");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Blue Banded Goby");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Grunion");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Stonefish");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Leopard Shark");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Thornback");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  gtk_tree_item_set_subtree(GTK_TREE_ITEM( node1 ), subtree);  subtree = gtk_tree_new();  gtk_widget_show( subtree );  node = gtk_tree_item_new_with_label("Ochre Star");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Sea Pen");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Pacific Octopus");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Sea Wasp");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Sea Urchin");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  gtk_tree_item_set_subtree(GTK_TREE_ITEM( node2 ), subtree);  subtree = gtk_tree_new();  gtk_widget_show( subtree );  node = gtk_tree_item_new_with_label("Gray Whale");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Sea Otter");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Bottlenose Dolphin");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  node = gtk_tree_item_new_with_label("Killer Whale");  gtk_tree_append(GTK_TREE(subtree), node);  gtk_widget_show(node);	  gtk_tree_item_set_subtree(GTK_TREE_ITEM( node3 ), subtree);  return root;}main( argc, argv )int argc;char *argv[];{  GtkWidget *window, *tree, *vbox;  gtk_init( &argc, &argv );  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);  gtk_widget_show( window );  gtk_window_position(GTK_WINDOW (window), GTK_WIN_POS_CENTER);  gtk_signal_connect(GTK_OBJECT (window), "destroy",    GTK_SIGNAL_FUNC(gtk_widget_destroy), &window);  gtk_window_set_title(GTK_WINDOW (window), "GtkTree Sample");  gtk_container_border_width(GTK_CONTAINER (window), 0);  tree = make_tree(window);  vbox = gtk_vbox_new( FALSE, 0 );  gtk_container_add(GTK_CONTAINER (window), vbox);  gtk_box_pack_start( GTK_BOX( vbox ), tree, FALSE, FALSE, 0 );  gtk_widget_show_all( vbox );  gtk_main();}