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>Table Packing Example</A
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>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
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>Here's the source code:</P
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> #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
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