public static extern RetCode_t acsOpenStream( out ACSHandle_t acsHandle, InvokeIDType_t invokeIDType, InvokeID_t invokeID, StreamType_t streamType, ref ServerID_t serverID, ref LoginID_t loginID, ref Passwd_t passwd, ref AppName_t applicationName, Level_t acsLevelReq, ref Version_t apiVer, ushort sendQSize, ushort sendExtraBufs, ushort recvQSize, ushort recvExtraBufs, PrivateData_t priv);
public static extern RetCode_t acsSetHeartbeatInterval( ACSHandle_t acsHandle, InvokeID_t invokeID, ushort heartbeatInterval, PrivateData_t privateData);
public static extern RetCode_t acsCloseStream( ACSHandle_t acsHandle, InvokeID_t invokeID, PrivateData_t priv);