FMOD.Sound.FMOD_Sound_Set3DCustomRolloff C# (CSharp) Method

        private static extern RESULT FMOD_Sound_Set3DCustomRolloff      (IntPtr sound, ref VECTOR points, int numpoints);
        [DllImport(VERSION.dll)]

 public RESULT set3DCustomRolloff(ref VECTOR points, int numpoints)
 {
     return(Sound.FMOD_Sound_Set3DCustomRolloff(soundraw, ref points, numpoints));
 }