FMOD.Sound.FMOD_Sound_Set3DConeSettings C# (CSharp) Method

        private static extern RESULT FMOD_Sound_Set3DConeSettings       (IntPtr sound, float insideconeangle, float outsideconeangle, float outsidevolume);
        [DllImport(VERSION.dll)]

 public RESULT set3DConeSettings(float insideconeangle, float outsideconeangle, float outsidevolume)
 {
     return(Sound.FMOD_Sound_Set3DConeSettings(soundraw, insideconeangle, outsideconeangle, outsidevolume));
 }