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<HTML><HEAD><TITLE>Code Examples</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.49"><LINKREL="HOME"TITLE="GTK+ 1.2 Tutorial"HREF="gtk-tut.html"><LINKREL="PREVIOUS"TITLE="GDK Event Types"HREF="app-gdkeventtypes.html"><LINKREL="NEXT"TITLE="GtkDial"HREF="sec-gtkdial.html"></HEAD></head><body bgcolor="#FFFFFF" marginheight=0 marginwidth=0 width="100%"><table cellspacing=6 border=0 cellpadding=0 width="100%">  <tr>    <td bgcolor="#FFFFFF" valign=top nowrap>    <centeR><A HREF="/"><img src="/images/gtk-logo-rgb.gif" width=107 height=140 border=0></A>      <font face="helvetica,lucidia" color="#000000"><BR><BR><b>GTK+<BR>The GIMP Toolkit</b></center><BR><table width=100% cellspacing=0 cellpadding=2 border=0><tr><td bgcolor="#000000"><table width=100% cellspacing=0 cellpadding=4 border=0><tr><td bgcolor="#AAAAEE" nowrap><B>General</B></td></tr><tr><td bgcolor="#FFFFFF" nowrap><A HREF="/">Introduction</A><BR><A HREF="/screenshots/">Screenshots</A><br><A HREF="/download/">Download</A><br><A HREF="/mailinglists.html">Mailing Lists</A><BR><A HREF="/bindings.html">Language Bindings</A><BR><A HREF="http://gtk.themes.org/">Themes</A><BR><A HREF="/bugs.html">Bug Tracker</A><BR></td></tr></table></td></tr></table><BR>  <table width=100% cellspacing=0 cellpadding=2 border=0><tr><td bgcolor="#000000"><table width=100% cellspacing=0 cellpadding=4 border=0><tr><td bgcolor="#AAAAEE" nowrap><B>Documentation</B></td></tr><tr><td bgcolor="#FFFFFF" nowrap><A HREF="/faq/">FAQ</A><br><A HREF="/tutorial/">Tutorial</A><BR><A HREF="/api/">API Reference</A><br><A HREF="/books.html">Published Books</A><BR></td></tr></table></td></tr></table><BR>  <table width=100% cellspacing=0 cellpadding=2 border=0><tr><td bgcolor="#000000"><table width=100% cellspacing=0 cellpadding=4 border=0><tr><td bgcolor="#AAAAEE" nowrap><B>Projects</B></td></tr><tr><td bgcolor="#FFFFFF" nowrap><A HREF="http://www.pango.org/">Pango</A><BR><A HREF="http://sources.redhat.com/inti/">Inti</A><BR><A HREF="http://www.gnome.org/">GNOME</A><BR><A HREF="http://user.sgic.fi/~tml/gimp/win32/">GTK+ for Win32</A><br><A HREF="http://people.redhat.com/sopwith/gtkfb/">GtkFB (Framebuffer)</A><br><A HREF="http://www.directfb.org/gtk.xml">GTK+ on DirectFB</A><BR><A HREF="/beos/">GTK+ for BeOS</A></td></tr></table></td></tr></table><BR>  <table width=100% cellspacing=0 cellpadding=2 border=0><tr><td bgcolor="#000000"><table width=100% cellspacing=0 cellpadding=4 border=0><tr><td bgcolor="#AAAAEE" nowrap><B><B>Applications</B></B></td></tr><tr><td bgcolor="#FFFFFF" nowrap><A HREF="http://www.gimp.org/">GIMP</A><BR><A HREF="http://www.abiword.org/">Abiword</A><BR><A HREF="http://www.lysator.liu.se/~alla/dia/dia.html">Dia</A><BR><A HREF="http://glade.pn.org/">Glade</A><BR><A HREF="http://www.gnucash.org/">GnuCash</A><BR><A HREF="http://www.gnome.org/projects/gnumeric/">Gnumeric</A><BR><BR><A HREF="http://www.gnome.org/applist/">GNOME Software Map</A><br></td></tr></table></td></tr></table><BR>      </td>  <td bgcolor="#ffffff" valign=top width="99%"><font face="lucida,helvetica"><BODYCLASS="APPENDIX"BGCOLOR="#FFFFFF"TEXT="#000000"LINK="#0000FF"VLINK="#840084"ALINK="#0000FF"><DIVCLASS="NAVHEADER"><TABLEWIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">GTK+ 1.2 Tutorial</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="app-gdkeventtypes.html">&#60;&#60;&#60; Previous</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom"></TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="sec-gtkdial.html">Next &#62;&#62;&#62;</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><DIVCLASS="APPENDIX"><H1><ANAME="APP-CODEEXAMPLES">Appendix C. Code Examples</A></H1><P>Below are the code examples that are used in the above textwhich are not included in complete form elsewhere.</P><DIVCLASS="SECT1"><H1CLASS="SECT1"><ANAME="SEC-TICTACTOE">C.1. Tictactoe</A></H1><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN3273">C.1.1. tictactoe.h</A></H2><TABLEBORDER="0"BGCOLOR="#E0E0E0"WIDTH="100%"><TR><TD><PRECLASS="PROGRAMLISTING">/* example-start tictactoe tictactoe.h *//* GTK - The GIMP Toolkit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */#ifndef __TICTACTOE_H__#define __TICTACTOE_H__#include &#60;gdk/gdk.h&#62;#include &#60;gtk/gtkvbox.h&#62;#ifdef __cplusplusextern "C" {#endif /* __cplusplus */#define TICTACTOE(obj)          GTK_CHECK_CAST (obj, tictactoe_get_type (), Tictactoe)#define TICTACTOE_CLASS(klass)  GTK_CHECK_CLASS_CAST (klass, tictactoe_get_type (), TictactoeClass)#define IS_TICTACTOE(obj)       GTK_CHECK_TYPE (obj, tictactoe_get_type ())typedef struct _Tictactoe       Tictactoe;typedef struct _TictactoeClass  TictactoeClass;struct _Tictactoe{  GtkVBox vbox;    GtkWidget *buttons[3][3];};struct _TictactoeClass{  GtkVBoxClass parent_class;  void (* tictactoe) (Tictactoe *ttt);};guint          tictactoe_get_type        (void);GtkWidget*     tictactoe_new             (void);void	       tictactoe_clear           (Tictactoe *ttt);#ifdef __cplusplus}#endif /* __cplusplus */#endif /* __TICTACTOE_H__ *//* example-end */</PRE></TD></TR></TABLE></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN3276">C.1.2. tictactoe.c</A></H2><TABLEBORDER="0"BGCOLOR="#E0E0E0"WIDTH="100%"><TR><TD><PRECLASS="PROGRAMLISTING">/* example-start tictactoe tictactoe.c *//* GTK - The GIMP Toolkit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */#include "gtk/gtksignal.h"#include "gtk/gtktable.h"#include "gtk/gtktogglebutton.h"#include "tictactoe.h"enum {  TICTACTOE_SIGNAL,  LAST_SIGNAL};static void tictactoe_class_init          (TictactoeClass *klass);static void tictactoe_init                (Tictactoe      *ttt);static void tictactoe_toggle              (GtkWidget *widget, Tictactoe *ttt);static gint tictactoe_signals[LAST_SIGNAL] = { 0 };guinttictactoe_get_type (){  static guint ttt_type = 0;  if (!ttt_type)    {      GtkTypeInfo ttt_info =      {	"Tictactoe",	sizeof (Tictactoe),	sizeof (TictactoeClass),	(GtkClassInitFunc) tictactoe_class_init,	(GtkObjectInitFunc) tictactoe_init,        (GtkArgSetFunc) NULL,        (GtkArgGetFunc) NULL      };      ttt_type = gtk_type_unique (gtk_vbox_get_type (), &#38;ttt_info);    }  return ttt_type;}static voidtictactoe_class_init (TictactoeClass *class){  GtkObjectClass *object_class;  object_class = (GtkObjectClass*) class;    tictactoe_signals[TICTACTOE_SIGNAL] = gtk_signal_new ("tictactoe",					 GTK_RUN_FIRST,					 object_class-&#62;type,					 GTK_SIGNAL_OFFSET (TictactoeClass,                                                            tictactoe),					 gtk_signal_default_marshaller,                                         GTK_TYPE_NONE, 0);  gtk_object_class_add_signals (object_class, tictactoe_signals, LAST_SIGNAL);  class-&#62;tictactoe = NULL;}static voidtictactoe_init (Tictactoe *ttt){  GtkWidget *table;  gint i,j;    table = gtk_table_new (3, 3, TRUE);  gtk_container_add (GTK_CONTAINER(ttt), table);  gtk_widget_show (table);  for (i=0;i&#60;3; i++)    for (j=0;j&#60;3; j++)      {	ttt-&#62;buttons[i][j] = gtk_toggle_button_new ();	gtk_table_attach_defaults (GTK_TABLE(table), ttt-&#62;buttons[i][j], 				   i, i+1, j, j+1);	gtk_signal_connect (GTK_OBJECT (ttt-&#62;buttons[i][j]), "toggled",			    GTK_SIGNAL_FUNC (tictactoe_toggle), ttt);	gtk_widget_set_usize (ttt-&#62;buttons[i][j], 20, 20);	gtk_widget_show (ttt-&#62;buttons[i][j]);      }}GtkWidget*tictactoe_new (){  return GTK_WIDGET ( gtk_type_new (tictactoe_get_type ()));}void	       tictactoe_clear (Tictactoe *ttt){  int i,j;  for (i=0;i&#60;3;i++)    for (j=0;j&#60;3;j++)      {	gtk_signal_handler_block_by_data (GTK_OBJECT(ttt-&#62;buttons[i][j]), ttt);	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (ttt-&#62;buttons[i][j]),				     FALSE);	gtk_signal_handler_unblock_by_data (GTK_OBJECT(ttt-&#62;buttons[i][j]), ttt);      }}static voidtictactoe_toggle (GtkWidget *widget, Tictactoe *ttt){  int i,k;  static int rwins[8][3] = { { 0, 0, 0 }, { 1, 1, 1 }, { 2, 2, 2 },			     { 0, 1, 2 }, { 0, 1, 2 }, { 0, 1, 2 },			     { 0, 1, 2 }, { 0, 1, 2 } };  static int cwins[8][3] = { { 0, 1, 2 }, { 0, 1, 2 }, { 0, 1, 2 },			     { 0, 0, 0 }, { 1, 1, 1 }, { 2, 2, 2 },			     { 0, 1, 2 }, { 2, 1, 0 } };  int success, found;  for (k=0; k&#60;8; k++)    {      success = TRUE;      found = FALSE;      for (i=0;i&#60;3;i++)	{	  success = success &#38;&#38; 	    GTK_TOGGLE_BUTTON(ttt-&#62;buttons[rwins[k][i]][cwins[k][i]])-&#62;active;	  found = found ||	    ttt-&#62;buttons[rwins[k][i]][cwins[k][i]] == widget;	}            if (success &#38;&#38; found)	{	  gtk_signal_emit (GTK_OBJECT (ttt), 			   tictactoe_signals[TICTACTOE_SIGNAL]);	  break;	}    }}/* example-end */</PRE></TD></TR></TABLE></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2"><ANAME="AEN3279">C.1.3. ttt_test.c</A></H2><TABLEBORDER="0"BGCOLOR="#E0E0E0"WIDTH="100%"><TR><TD><PRECLASS="PROGRAMLISTING">/* example-start tictactoe ttt_test.c */#include &#60;gtk/gtk.h&#62;#include "tictactoe.h"void win( GtkWidget *widget,          gpointer   data ){  g_print ("Yay!\n");  tictactoe_clear (TICTACTOE (widget));}int main( int   argc,          char *argv[] ){  GtkWidget *window;  GtkWidget *ttt;    gtk_init (&#38;argc, &#38;argv);  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);    gtk_window_set_title (GTK_WINDOW (window), "Aspect Frame");    gtk_signal_connect (GTK_OBJECT (window), "destroy",		      GTK_SIGNAL_FUNC (gtk_exit), NULL);    gtk_container_set_border_width (GTK_CONTAINER (window), 10);  ttt = tictactoe_new ();    gtk_container_add (GTK_CONTAINER (window), ttt);  gtk_widget_show (ttt);  gtk_signal_connect (GTK_OBJECT (ttt), "tictactoe",		      GTK_SIGNAL_FUNC (win), NULL);  gtk_widget_show (window);    gtk_main ();    return 0;}/* example-end */</PRE></TD></TR></TABLE></DIV></DIV></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLEWIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="app-gdkeventtypes.html">&#60;&#60;&#60; Previous</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="gtk-tut.html">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="sec-gtkdial.html">Next &#62;&#62;&#62;</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">GDK Event Types</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top">&nbsp;</TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">GtkDial</TD></TR></TABLE></DIV>        </td>    </tr></table>  </td>  </tr></table></body></BODY></HTML>
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