/* * * 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>void        ChangeFocusRowExpansion(GtkCTree *ctree, GtkCTreeExpansionType expansion,   gpointer user_data){	printf( "Hello World\n" );}static GtkWidget *make_tree ( void ){  GtkWidget *root;  GtkCTreeNode *parent, *node;  gchar *text[1];  // create the root node of the tree.  root = gtk_ctree_new( 1, 0 );  // Fish  text[0] = "Fish";  parent = gtk_ctree_insert_node(GTK_CTREE(root),    NULL, NULL, text, 5, NULL, NULL, NULL, NULL, FALSE, TRUE);  text[0] = "Dangerous";  node = gtk_ctree_insert_node(GTK_CTREE(root),    parent, NULL, text, 5, NULL, NULL, NULL, NULL, FALSE, TRUE);  text[0] = "Great White Shark";  gtk_ctree_insert_node(GTK_CTREE(root),    node, NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  text[0] = "Stonefish";  gtk_ctree_insert_node(GTK_CTREE(root),    node,  NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  text[0] = "Non-Dangerous";  node = gtk_ctree_insert_node(GTK_CTREE(root),    parent,  NULL, text, 5, NULL, NULL, NULL, NULL, FALSE, TRUE);  text[0] = "Blue Banded Goby";  gtk_ctree_insert_node(GTK_CTREE(root),    node, NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  text[0] = "Grunion";  gtk_ctree_insert_node(GTK_CTREE(root),    node,  NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  text[0] = "Leopard Shark";  gtk_ctree_insert_node(GTK_CTREE(root),    node, NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  text[0] = "Thornback";  gtk_ctree_insert_node(GTK_CTREE(root),    node, NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  // Invertebrates  text[0] = "Invertebrates";  parent = gtk_ctree_insert_node(GTK_CTREE(root),    NULL, NULL, text, 5, NULL, NULL, NULL, NULL, FALSE, TRUE);  text[0] = "Dangerous";  node = gtk_ctree_insert_node(GTK_CTREE(root),    parent, NULL, text, 5, NULL, NULL, NULL, NULL, FALSE, TRUE);  text[0] = "Sea Wasp";  gtk_ctree_insert_node(GTK_CTREE(root),    node, NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  text[0] = "Non-Dangerous";  node = gtk_ctree_insert_node(GTK_CTREE(root),    parent, NULL, text, 5, NULL, NULL, NULL, NULL, FALSE, TRUE);  text[0] = "Ochre Star";  gtk_ctree_insert_node(GTK_CTREE(root),    node, NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  text[0] = "Sea Pen";  gtk_ctree_insert_node(GTK_CTREE(root),    node, NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  text[0] = "Pacific Octopus";  gtk_ctree_insert_node(GTK_CTREE(root),    node, NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  text[0] = "Sea Urchin";  gtk_ctree_insert_node(GTK_CTREE(root),    node, NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  // Mammals  text[0] = "Mammals";  parent = gtk_ctree_insert_node(GTK_CTREE(root),    NULL, NULL, text, 5, NULL, NULL, NULL, NULL, FALSE, TRUE);  text[0] = "Dangerous";  node = gtk_ctree_insert_node(GTK_CTREE(root),    parent, NULL, text, 5, NULL, NULL, NULL, NULL, FALSE, TRUE);  text[0] = "Killer Whale";  gtk_ctree_insert_node(GTK_CTREE(root),    node, NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  text[0] = "Non-Dangerous";  node = gtk_ctree_insert_node(GTK_CTREE(root),    parent, NULL, text, 5, NULL, NULL, NULL, NULL, FALSE, TRUE);  text[0] = "Gray Whale";  gtk_ctree_insert_node(GTK_CTREE(root),    node, NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  text[0] = "Sea Otter";  gtk_ctree_insert_node(GTK_CTREE(root),    node, NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  text[0] = "Bottlenose Dolphin";  gtk_ctree_insert_node(GTK_CTREE(root),    node, NULL, text, 5, NULL, NULL, NULL, NULL, TRUE, TRUE);  gtk_signal_connect(GTK_OBJECT (root), "change_focus_row_expansion",    GTK_SIGNAL_FUNC(ChangeFocusRowExpansion), root);  return root;}main( argc, argv )int argc;char *argv[];{  GtkWidget *window, *tree;  gtk_init( &argc, &argv );  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);  gtk_widget_set_usize( window, 200, -1 );  gtk_signal_connect(GTK_OBJECT (window), "destroy",    GTK_SIGNAL_FUNC(gtk_widget_destroy), &window);  gtk_window_set_title(GTK_WINDOW (window), "GtkCTree Sample");  gtk_container_border_width(GTK_CONTAINER (window), 0);  tree = make_tree();  gtk_container_add(GTK_CONTAINER(window), tree);  gtk_window_position(GTK_WINDOW (window), GTK_WIN_POS_CENTER);  gtk_widget_show_all( window );  gtk_main();}