{
      CHECK_NULL (widget && value);

        switch (widget->type) {
      case GP_WIDGET_BUTTON:
            *(CameraWidgetCallback*)value = widget->callback;
            return (GP_OK);
      case GP_WIDGET_MENU:
      case GP_WIDGET_RADIO:
        case GP_WIDGET_TEXT:
            *((char**)value) = widget->value_string;
            return (GP_OK);
        case GP_WIDGET_RANGE:
            *((float*)value) = widget->value_float;
            return (GP_OK);
        case GP_WIDGET_TOGGLE:
      case GP_WIDGET_DATE:
                  *((int*)value) = widget->value_int;
            return (GP_OK);
      case GP_WIDGET_SECTION:
      case GP_WIDGET_WINDOW:
        default:
            return (GP_ERROR_BAD_PARAMETERS);
        }
}