/* * * 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>main( int argc, char *argv[] ){	GtkWidget *dialog, *label, *button;	gtk_init( &argc, &argv );	dialog = gtk_dialog_new();	gtk_window_set_policy( GTK_WINDOW( dialog ), FALSE, FALSE, FALSE );	gtk_window_set_title( GTK_WINDOW( dialog ), "Alert" );	gtk_container_set_border_width( GTK_CONTAINER(dialog), 5 );	label = gtk_label_new(     "You have new mail! To read it, select the Read Mail... menu item from the File menu."   );	gtk_label_set_justify( GTK_LABEL(label), GTK_JUSTIFY_CENTER );	gtk_label_set_line_wrap( GTK_LABEL(label), TRUE );	gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), label, TRUE,     TRUE, 20);  button = gtk_button_new_with_label ("OK");  GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);  gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->action_area),    button, FALSE, FALSE, 0);  gtk_widget_grab_default (button);	gtk_widget_show_all( dialog );	gtk_main();}