Opc data Access Automation Specification

4.4.4.6

 

ClientHandle  

Description 

(Read/Write) A Long value associated with the group. Its purpose is for the client to quickly locate 

the destination of data. The handle is typically an index, etc. This handle will be returned to the 

client along with data or status. 

Syntax 

ClientHandle As Long 

Example 

VB Syntax Example (getting the property): 

Dim CurrentValue As Long 

Set MyGroups = AnOPCServer.OPCGroups 

Set OneGroup = MyGroups.ConnectPublicGroup ( “AnOPCGroupName” ) 

‘   some more code here 

49 

 

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OPC Data Access Automation Specification2.02 

Set CurrentValue  = OneGroup.ClientHandle ‘ to get the value  

VB Syntax Example (setting the property): 

Set MyGroups = AnOPCServer.OPCGroups 

Set OneGroup = MyGroups.ConnectPublicGroup ( “AnOPCGroupName” ) 

‘   some more code here 

OneGroup.ClientHandle = 1975 ‘ to set the value