/* * * 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 <stdio.h>#include <time.h>#include <gtk/gtk.h>voidUpdate (GtkWidget *widget, char *timestr){	time_t timeval;	timeval = time( NULL );	strcpy( timestr, ctime( &timeval ) );}voidPrintAndExit (GtkWidget *widget, char timestr[4][26]){	int	i;	for ( i = 0; i < 4; i++ ) 		printf( "timestr[ %d ] is %s", i, timestr[ i ] ); 	gtk_main_quit ();}intmain( int argc, char *argv[] ){	GtkWidget *window, *box, *button;	static char times[ 4 ][ 26 ] = 		{ "Unset\n", "Unset\n", "Unset\n", "Unset\n" }; 	gtk_set_locale (); 	gtk_init (&argc, &argv);	window = gtk_window_new (GTK_WINDOW_TOPLEVEL); 	gtk_signal_connect (GTK_OBJECT(window), "destroy", 		GTK_SIGNAL_FUNC(PrintAndExit), times); 	gtk_window_set_title (GTK_WINDOW (window), "Signals 1"); 	gtk_container_border_width (GTK_CONTAINER (window), 0); 	box = gtk_vbox_new (FALSE, 0); 	gtk_container_add (GTK_CONTAINER (window), box); 	button = gtk_button_new_with_label ("Update 0"); 	gtk_signal_connect (GTK_OBJECT (button), "clicked",   	GTK_SIGNAL_FUNC(Update), &times[0]); 	gtk_box_pack_start (GTK_BOX (box), button, TRUE, TRUE, 0); 	button = gtk_button_new_with_label ("Update 1"); 	gtk_signal_connect (GTK_OBJECT (button), "clicked",   	GTK_SIGNAL_FUNC(Update), &times[1]); 	gtk_box_pack_start (GTK_BOX (box), button, TRUE, TRUE, 0);	button = gtk_button_new_with_label ("Update 2"); 	gtk_signal_connect (GTK_OBJECT (button), "clicked",   	GTK_SIGNAL_FUNC(Update), &times[2]); 	gtk_box_pack_start (GTK_BOX (box), button, TRUE, TRUE, 0); 	button = gtk_button_new_with_label ("Update 3"); 	gtk_signal_connect (GTK_OBJECT (button), "clicked",   	GTK_SIGNAL_FUNC(Update), &times[3]); 	gtk_box_pack_start (GTK_BOX (box), button, TRUE, TRUE, 0);	gtk_widget_show_all (window);	gtk_main ();	return( 0 );}