Visual Basic (Declaration)
C#

0 if the call is the result of an ordinary subscription.
If the call is the result of a call to Refresh2 then this is the value passed to Refresh2.

Syntax

Visual Basic (Declaration)
Public transactionID As Integer

C#
public int transactionID

Requirements

Target Platforms: Windows 7/8/10, Windows Server 2008/2012/2016, .NET 4.x