Echelon OpenLDV User Manual download pdf (Page 189)

OpenLDV Programmer’s Guide 181

This method sets the remote TCP port that the RNI at the other end of the

connection uses to receive connections from the LNS Server. For a downlink

session, it is the responsibility of the xDriver lookup extension to map the

downlink lookup key to the database, extract the remote TCP port from the

database, and fill it into the SCO using this method.

Syntax

C++ STDMETHOD(SetRemoteTCPPort)(short tcpPort)

Visual Basic Function GetRemoteTCPPort() As Short

Table 72. SetRemoteTCPPort Parameters

Parameter Description

tcpPort Remote TCP port number that the RNI uses to receive connections

from the LNS Server on as an integer. Must be in the range 1 - 65535.

Recommendation: Use port 1024 or higher.

Returns

Standard COM HRESULT describing the result of the call. Returns

E_ACCESS_DENIED if the field is currently read-only. Table 68 on page 178

lists each SCO_TCP field, along with when these fields are read-only.

ILdvxSCO2 Interface

The SCO2 interface is one of the interfaces to the Session Control Object. It

provides additional properties and methods for user extensions.

GetNeuronID Method

Applies to: Session Control Object

This method gets the Neuron ID of the RNI.

Syntax

C++ STDMETHOD(GetNeuronID)(BSTR * nNeuronID)

Visual Basic Function GetNeuronID() As String

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Echelon OpenLDV User Manual Page 189