/* * * 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>/* * Simple MessageBox, without using GtkDialog */voidMessageBox2( char *message ){  GtkWidget *hbox, *vbox1, *vbox2, *separator, *label, *button,    *dialog_window;  dialog_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);  gtk_window_position (GTK_WINDOW (dialog_window), GTK_WIN_POS_MOUSE);  gtk_signal_connect (GTK_OBJECT (dialog_window), "destroy",    GTK_SIGNAL_FUNC(gtk_widget_destroyed), &dialog_window);  gtk_window_set_title (GTK_WINDOW (dialog_window), "Message");  gtk_container_border_width (GTK_CONTAINER (dialog_window), 0);  /* create the outer vbox that holds the control area vbox, the action     area hbox, and the separator between them */  vbox1 = gtk_vbox_new (FALSE, 0);  gtk_container_add (GTK_CONTAINER (dialog_window), vbox1);  /* create the vbox that represents the control area. The message (as an     instance of GtkLabel) will be added to this vbox. Add the control     area vbox to the outer vbox */  vbox2 = gtk_vbox_new (FALSE, 0);  gtk_box_pack_start ( GTK_BOX (vbox1), vbox2, TRUE, TRUE, 0);  /* create the separator, and add it to the outer vbox */  separator = gtk_hseparator_new();  gtk_box_pack_start ( GTK_BOX (vbox1), separator, TRUE, TRUE, 0);  /* create the hbox that represents the action area. The OK button will     be added to this hbox. Add the action area hbox to the outer vbox */  hbox = gtk_vbox_new (FALSE, 5);  gtk_container_set_border_width (GTK_CONTAINER (hbox), 10);  gtk_box_pack_start ( GTK_BOX (vbox1), hbox, TRUE, TRUE, 0);  /* now, create the message label and the OK button, and add them to the     control and action areas, respectively. */  button = gtk_button_new_with_label ("OK");  GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);  gtk_box_pack_start ( GTK_BOX (hbox), button, TRUE, TRUE, 0);  gtk_signal_connect_object (GTK_OBJECT (button), "clicked",    GTK_SIGNAL_FUNC (gtk_widget_destroy), GTK_OBJECT (dialog_window));  label = gtk_label_new (message);  gtk_misc_set_padding (GTK_MISC (label), 10, 10);  gtk_box_pack_start (GTK_BOX (vbox2), label, TRUE, TRUE, 0);  gtk_widget_grab_default (button);  gtk_widget_show_all (dialog_window);}main( int argc, char *argv[] ){	gtk_init( &argc, &argv );	MessageBox2( "Hello There!" );	gtk_main();}