FMOD.Studio.EventInstance.getDescription C# (CSharp) Method

        public RESULT getDescription(out EventDescription description)
        {
            description = null;

            IntPtr newPtr;
            RESULT result = FMOD_Studio_EventInstance_GetDescription(rawPtr, out newPtr);
            if (result != RESULT.OK)
            {
                return result;
            }
            description = new EventDescription(newPtr);
            return result;
        }
        public RESULT getVolume(out float volume)

    void Start()
    {
        menuState = RuntimeManager.CreateInstance(fmodMenuEvent);
        menuState.start();

        // FMOD Layer ID Caches
        #region
        FMOD.Studio.EventDescription mainEventDescription;
        menuState.getDescription(out mainEventDescription);
        FMOD.Studio.PARAMETER_DESCRIPTION mainParameterDescription;
        mainEventDescription.getParameterDescriptionByName("Main Menu Layer On", out mainParameterDescription);
        mainLayerID = mainParameterDescription.id;

        FMOD.Studio.EventDescription optionsEventDescription;
        menuState.getDescription(out optionsEventDescription);
        FMOD.Studio.PARAMETER_DESCRIPTION optionsParameterDescription;
        optionsEventDescription.getParameterDescriptionByName("Options Layer On", out optionsParameterDescription);
        optionsLayerID = optionsParameterDescription.id;

        FMOD.Studio.EventDescription creditsEventDescription;
        menuState.getDescription(out creditsEventDescription);
        FMOD.Studio.PARAMETER_DESCRIPTION creditsParameterDescription;
        creditsEventDescription.getParameterDescriptionByName("Credits Layer On", out creditsParameterDescription);
        creditsLayerID = creditsParameterDescription.id;
        #endregion
        // End of FMOD Layer ID Caches

        menuState.setParameterByID(optionsLayerID, 1f);
        menuState.setParameterByID(mainLayerID, 1f);
        menuState.setParameterByID(creditsLayerID, 1f);
    }