int duration = vDuration;
if (dbus_message_iter_append_basic(&args, DBUS_TYPE_INT32, &speed)) {
if (dbus_message_iter_append_basic(&args, DBUS_TYPE_INT32, &duration)) {
int duration = vDuration;
if (dbus_message_iter_append_basic(&args, DBUS_TYPE_INT32, &speed)) {
if (dbus_message_iter_append_basic(&args, DBUS_TYPE_INT32, &duration)) {