FMOD.ChannelGroup.FMOD_ChannelGroup_GetNumChannels C# (CSharp) Method

        private static extern RESULT FMOD_ChannelGroup_GetNumChannels   (IntPtr channelgroup, out int numchannels);
        [DllImport(VERSION.dll)]

 public RESULT getNumChannels(ref int numchannels)
 {
     return(ChannelGroup.FMOD_ChannelGroup_GetNumChannels(channelgroupraw, ref numchannels));
 }