public RESULT addGroup (ChannelGroup group, bool propagatedspclock, out DSPConnection connection) { connection = null; IntPtr connectionRaw; RESULT result = FMOD_ChannelGroup_AddGroup(getRaw(), group.getRaw(), propagatedspclock, out connectionRaw); connection = new DSPConnection(connectionRaw); return result; } public RESULT getNumGroups (out int numgroups)