public bool SetVibration(int index, float left, float right)
{
left = Math.Max(Math.Min(left, 1f), 0f);
right = Math.Max(Math.Min(right, 1f), 0f);
XInputVibration vibration = new XInputVibration(
(ushort)(left * UInt16.MaxValue),
(ushort)(right * UInt16.MaxValue));
return SetState((XInputUserIndex)index, ref vibration) == XInputErrorCode.Success;
}