<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >Table Packing Example</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="GTK+ 2.0 Tutorial" HREF="book1.html"><LINK REL="UP" TITLE="Packing Widgets" HREF="c354.html"><LINK REL="PREVIOUS" TITLE="Packing Using Tables" HREF="x389.html"><LINK REL="NEXT" TITLE="Widget Overview" HREF="c450.html"></HEAD ><BODY CLASS="SECT1" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >GTK+ 2.0 Tutorial</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="x389.html" ACCESSKEY="P" ><<< Previous</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Packing Widgets</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="c450.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="SEC-TABLEPACKINGEXAMPLES" >Table Packing Example</A ></H1 ><P >Here we make a window with three buttons in a 2x2 table. The first two buttons will be placed in the upper row. A third, quit button, is placed in the lower row, spanning both columns. Which means it should look something like this:</P ><P ><SPAN CLASS="INLINEMEDIAOBJECT" ><IMG SRC="images/table.png"></SPAN ></P ><P >Here's the source code:</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" > #include <gtk/gtk.h> /* Our callback. * The data passed to this function is printed to stdout */ static void callback( GtkWidget *widget, gpointer data ) { g_print ("Hello again - %s was pressed\n", (char *) data); } /* This callback quits the program */ static gboolean delete_event( GtkWidget *widget, GdkEvent *event, gpointer data ) { gtk_main_quit (); return FALSE; } int main( int argc, char *argv[] ) { GtkWidget *window; GtkWidget *button; GtkWidget *table; gtk_init (&argc, &argv); /* Create a new window */ window = gtk_window_new (GTK_WINDOW_TOPLEVEL); /* Set the window title */ gtk_window_set_title (GTK_WINDOW (window), "Table"); /* Set a handler for delete_event that immediately * exits GTK. */ g_signal_connect (window, "delete-event", G_CALLBACK (delete_event), NULL); /* Sets the border width of the window. */ gtk_container_set_border_width (GTK_CONTAINER (window), 20); /* Create a 2x2 table */ table = gtk_table_new (2, 2, TRUE); /* Put the table in the main window */ gtk_container_add (GTK_CONTAINER (window), table); /* Create first button */ button = gtk_button_new_with_label ("button 1"); /* When the button is clicked, we call the "callback" function * with a pointer to "button 1" as its argument */ g_signal_connect (button, "clicked", G_CALLBACK (callback), (gpointer) "button 1"); /* Insert button 1 into the upper left quadrant of the table */ gtk_table_attach_defaults (GTK_TABLE (table), button, 0, 1, 0, 1); gtk_widget_show (button); /* Create second button */ button = gtk_button_new_with_label ("button 2"); /* When the button is clicked, we call the "callback" function * with a pointer to "button 2" as its argument */ g_signal_connect (button, "clicked", G_CALLBACK (callback), (gpointer) "button 2"); /* Insert button 2 into the upper right quadrant of the table */ gtk_table_attach_defaults (GTK_TABLE (table), button, 1, 2, 0, 1); gtk_widget_show (button); /* Create "Quit" button */ button = gtk_button_new_with_label ("Quit"); /* When the button is clicked, we call the "delete-event" function * and the program exits */ g_signal_connect (button, "clicked", G_CALLBACK (delete_event), NULL); /* Insert the quit button into the both * lower quadrants of the table */ gtk_table_attach_defaults (GTK_TABLE (table), button, 0, 2, 1, 2); gtk_widget_show (button); gtk_widget_show (table); gtk_widget_show (window); gtk_main (); return 0; }</PRE ></TD ></TR ></TABLE ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="x389.html" ACCESSKEY="P" ><<< Previous</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="book1.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="c450.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Packing Using Tables</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="c354.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Widget Overview</TD ></TR ></TABLE ></DIV ></BODY ></HTML >