FMOD.DSP.FMOD_DSP_SetActive C# (CSharp) Метод

        private static extern RESULT FMOD_DSP_SetActive                 (IntPtr dsp, bool active);
        [DllImport(VERSION.dll)]

 public RESULT setActive(bool active)
 {
     return(DSP.FMOD_DSP_SetActive(dspraw, active ? 1 : 0));
 }