delete event for contained widget does not work

[Deekshit Mantampady <dmantamp gmail com>]

Hi all,
   I have an entry in  window with containment as
   window > vbox > hbox >entry. (Code pasted below).
  I registered for window delete_event, I call destroy on window, in
the callback. I was expecting it to destroy the etry also. In that
case destroy/delete event callback for entry should be called. But it
does not happen.
  In my real application, I need to free up memory allocated for a
data structure(application specific) associated with the entry. I
cannot do it when window is deleted.

Is there any way to catch, the event when the entry or any such widget
is deleted ?

Please help me.

code that I tried
==========================
#include <gtk/gtk.h>


gboolean window_deleted(GtkWidget *widget,
                        GdkEvent *event,
                        gpointer user_data)
{
  gtk_widget_destroy(widget);
  printf("Window deleted...\n");
  gtk_main_quit();
  return FALSE;
}

gboolean entry_deleted(GtkWidget *widget,
                        GdkEvent *event,
                        gpointer user_data)
{
  printf("Entry Deleted ...\n"); /* This is not called */

  return FALSE;
}

int main(int argc, char *argv[])
{

  GtkWidget *window, *vbox, *hbox, *entry;

  gtk_init(&argc, &argv);

  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  gtk_signal_connect(GTK_OBJECT(window), "delete_event",
                     GTK_SIGNAL_FUNC(window_deleted), NULL);
  vbox = gtk_vbox_new(FALSE, 2);
  gtk_container_add(GTK_CONTAINER(window), vbox);
  gtk_widget_show(vbox);

  hbox = gtk_hbox_new(FALSE, 2);
  gtk_box_pack_start(GTK_BOX(vbox), hbox, TRUE, TRUE, 2);
  gtk_widget_show(hbox);
entry = gtk_entry_new();
  gtk_box_pack_start(GTK_BOX(hbox), entry, TRUE, TRUE, 2);
  gtk_signal_connect(GTK_OBJECT(entry), "delete_event",
                     GTK_SIGNAL_FUNC(window_deleted), NULL);
  gtk_signal_connect(GTK_OBJECT(entry), "destroy_event",
                     GTK_SIGNAL_FUNC(window_deleted), NULL);
  gtk_widget_show(entry);

  gtk_widget_show(window);
  gtk_main();

  return 0;
}