Opc data Access Automation Specification

4.4.6.3

 

AsyncWriteComplete  

Description 

This event fires when an AsyncWrite is completed.   

Syntax 

AsyncWriteComplete (TransactionID As Long, NumItems As Long, ClientHandles() As Long, 

Errors() As Long) 

 

Part Description 

TransactionID 

The client specified transaction ID.  

NumItems 

The number of items returned 

ClientHandles 

Array of client item handles for the items  

Errors 

Array of Long’s indicating the success of the individual item writes.  

 

Example 

Dim WithEvents AnOPCGroup As OPCGroup 

Private Sub AnOPCGroup_AsyncWriteComplete (TransactionID As Long, NumItems As Long, 

ClientHandles() As Long, ItemValues() As Variant, Qualities() As Long, TimeStamps() As Date) 

‘ write your client code here to process the errors  

End Sub