Echelon OpenLNS - Manual (Page 706)

OpenLNS Programmer's Reference 669
ExtensionByHandle
Summary Retrieves an Extension object by its Handle property. This
method can be used to retrieve an extension record in the
global database—regardless of the collection containing the
Extension object. This may be particularly useful when
processing events reported by OnChangeEvent with
objectType of lcaChangeEventExtensions, and
networkHandle equal to 0.
Availability Local, full, and lightweight clients.
Syntax extension = objectServer.ExtensionByHandle
Element Description
Extension The Extension object.
system The ObjectServer object.
handle The handle of the Extension object to be
retrieved.
Added to API OpenLNS.
Move
Summary This is a standard ActiveX control property used for visual
controls. This property is not applicable for the Object Server
Open
Summary Opens the OpenLNS global object server database. To
initialize the ObjectServer, an application must do the
following (see the OpenLNS Programmer’s Guide for more
detailed information):
1. Open the global database using the Open method of the
ObjectServer.
2. Select or create a Network object.
3. Open the network database using the Open method of the
Network object.
4. Select or create a System object.
5. Initialize the System object by using the Open method of
the System object.
Invoking the Open method of the ObjectServer opens the
global database. The database path name is read from the
Windows System Registry which may be set using the
DatabasePath property of the ObjectServer.
Before invoking this method, the application needs to specify
whether it is a remote client by setting the RemoteFlag
property. In addition, you can use the Flags property of the
ObjectServer to specify a series of global flags that determine
how LNS will behave with the client application’s processes,
including the type of network variable update used, post-