Echelon LNS - Manual (Page 72)

LNS Programmer's Guide 58
Task Sample Code For More
Information,
See..
Opening
the Object
Server
ObjectServer.Open() Opening the
Object Server
on page 58
Opening a
Network Dim Networks as LcaNetworks
Dim MyNetwork as LcaNetwork
Set MyNetworks = ObjectServer.Networks
Set MyNetwork=MyNetworks.Item("Building 75")
MyNetwork.Open()
Opening a
Network on
page 59
Selecting the Remote Access Mode
As described in Selecting the Access Mode on page 49, each application must have some
means of determining whether it will run as a remote or local client. To specify the access
mode for a Lightweight client, follow these steps:
1. Set the ObjectServer object's Flags property to lcaFlagsUseTCP.
This sets the network transport mode, and indicates that the Lightweight
client will access the LNS Server via a TCP/IP connection:
ObjectServer.Flags = lcaFlagsUseTCP
NOTE: The lcaFlagsUseNSI and lcaFlagsUseTCP flags are
mutually exclusive.
2. Select remote operation by setting the ObjectServer object's
RemoteFlag property to True. This will cause the Networks collection to
contain all remote networks have been entered into the Windows
Registry on the PC running your application after the Object Server has
been opened:
ObjectServer.RemoteFlag = True
Specifying the License Mode
The last step you should take before opening the LNS Object Server is to set the licensing
mode. The licensing mode determines how the LNS Object Server will track the addition
of devices to a network by your application. Remote Lightweight client applications must
always operate in Standard Mode. To enable the Standard Mode, set your customer
identification information by calling the SetCustomerInfo() method on the
ObjectServer, as shown below:
ObjectServer.SetCustomerInfo(CustomerID, CustomerKey)
The CustomerID and CustomerKey parameter supplied to the function refer to the
customer identification and key numbers that are printed on the back cover of the LNS
Application Developer’s Kit CD-ROM jewel case. For more information on LNS licensing,
and for more details on the differences between Standard Mode and Demonstration
Mode, see Chapter 13, LNS Licensing.