GtkComboBox ? in Gtk+-2.3

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Hi all,

I test the new GtkComboBox widget for a project.
But i have a problem, the items on this GtkComboBox are hidden, and i don't know why.


Here is my source code, it's a small code, can you check it and send me the right way to use GtkComboBox.

Thanks,

Stephane

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

gchar *data[] = 
{
	"Item 1", "Item 2", "Item 3", NULL
};

GtkTreeModel *create_model(void)
{
	GtkListStore *store;
	GtkTreeIter iter;
	guint i;

	store = gtk_list_store_new(2, G_TYPE_INT, G_TYPE_STRING);
	for ( i = 0 ; data[i] != NULL; i++ )
	{
		gtk_list_store_append(store, &iter);
		gtk_list_store_set(store, &iter, 
				   0, i,
				   1, data[i], 
				   -1);
	}
	return GTK_TREE_MODEL(store);
}

gint main(gint argc,
	  gchar **argv)
{
	GtkWidget *window;
	GtkWidget *button;
	GtkWidget *combo_box;
	GtkTreeModel *model;
	gtk_init(&argc, &argv);
	
	window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
	g_signal_connect(G_OBJECT(window), "destroy", gtk_main_quit, NULL);	
	gtk_widget_set_size_request(window, 100, 50);
	
	model = create_model();
	if ( model != NULL ) 
	{
		combo_box = gtk_combo_box_new(model);
		gtk_container_add(GTK_CONTAINER(window), combo_box);
        }
	gtk_widget_show_all(window);
	
	gtk_main();

	return 0;
}

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