unmap event not emitted?

[Oscar Lazzarino <oscar lazzarino i-m3d com>]

Hi, I'm trying to catch the unmap or unmap-event signals, but it looks
to me like they are not emitted.

(BTW the reason for this is that I'm using an openGL widget and I need
to release textures and other data BEFORE the unrealize event).

The following code shows the problem: the unrealize callback is
called, but the unmap is not.

Thanks

#include <gtk/gtk.h>
#include <stdio.h>

GtkWidget *window;
GtkEventBox *eventbox;

static gboolean button_press(GtkWidget *widget, GdkEventButton *event,
gpointer user_data)
{
       printf("Button pressed %d\n", event->button);

       gtk_widget_hide(window);
       return FALSE;
}

static void unmap(GtkWidget *widget, gpointer user_data)
{
       printf("unmap");
}

static gboolean unmap_event(GtkWidget *widget, GdkEvent *event,
gpointer user_data)
{
       printf("unmap-event\n");
       return FALSE;
}

static void unrealize(GtkWidget *widget, gpointer user_data)
{
       printf("unrealize\n");
}

static gboolean delete_event(GtkWidget *widget, GdkEvent *event, 
gpointer data)
{
       gtk_main_quit();
       return FALSE;
}

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

       window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
       eventbox = gtk_event_box_new();

       gtk_container_add(GTK_CONTAINER(window), eventbox);

       g_signal_connect(eventbox, "button-press-event",
G_CALLBACK(button_press), NULL);
       g_signal_connect(eventbox, "unmap", G_CALLBACK(unmap), NULL);
       g_signal_connect(eventbox, "unmap-event", 
G_CALLBACK(unmap_event), NULL);
       g_signal_connect(eventbox, "unrealize", G_CALLBACK(unrealize), 
NULL);

       g_signal_connect(window, "delete-event", G_CALLBACK 
(delete_event), NULL);

       gtk_widget_show_all(window);
       gtk_main();

       return 0;
}