gint ghb_settings_combo_int(const GValue *settings, const gchar *key);
gdouble ghb_settings_combo_double(const GValue *settings, const gchar *key);
const gchar* ghb_settings_combo_option(const GValue *settings, const gchar *key);
+const gchar* ghb_settings_combo_string(const GValue *settings, const gchar *key);
GValue* ghb_widget_value(GtkWidget *widget);
gchar* ghb_widget_string(GtkWidget *widget);