internal static extern float NewtonHingeCalculateStopAlpha(IntPtr pHinge, [MarshalAs(UnmanagedType.LPStruct)] NewtonHingeSliderUpdateDesc pDesc, float pAngle);
internal static extern float NewtonCorkscrewCalculateStopAccel(IntPtr pCorkscrew, [MarshalAs(UnmanagedType.LPStruct)] NewtonHingeSliderUpdateDesc pDesc, float position);