+void gtk_combo_box_text_insert (GtkComboBoxText *combo_box,
+ gint position,
+ const gchar *id,
+ const gchar *text);
+void gtk_combo_box_text_append (GtkComboBoxText *combo_box,
+ const gchar *id,
+ const gchar *text);
+void gtk_combo_box_text_prepend (GtkComboBoxText *combo_box,
+ const gchar *id,
+ const gchar *text);