GtkComboBox

Hi, I am trying this code : $window = new GtkWindow('GTK_WINDOW_TOPLEVEL'); $window->set_position('GTK_WIN_POS_CENTER'); $window->connect_simple('destroy', array('gtk', 'main_quit')); $window->set_size_request(800,600); $combo_data = array ( array( "combo1"),array("combo2"),array("combo3"),array("combo4"));

          $combo =  new GtkComboBox();

$store = new GtkListStore("Gtk::TYPE_STRING"); $combo->set_model($store); foreach ($combo_data as $value){

           $store->append(array($value));
       }
      

$window->add($combo); $window->show_all(); Gtk::main(); It seems to work but the text into the combobox is invisible ! I have the right number of row displayed but nothing readable ! What's wrong with my code ? Thanks, Breizh.