'Declaration
 
Public Function New( _
   ByVal machineName As String, _
   ByVal serverClass As String, _
   ByVal itemId As String, _
   ByVal requestedUpdateRate As Integer, _
   ByVal callback As OpcLabs.EasyOpc.DataAccess.Generic.EasyDAItemChangedEventHandler(Of T), _
   ByVal state As Object _
)

'Usage
 
Dim machineName As String
Dim serverClass As String
Dim itemId As String
Dim requestedUpdateRate As Integer
Dim callback As OpcLabs.EasyOpc.DataAccess.Generic.EasyDAItemChangedEventHandler(Of T)
Dim state As Object
 
Dim instance As New EasyDAItemSubscriptionArguments(Of T)(machineName, serverClass, itemId, requestedUpdateRate, callback, state)

public EasyDAItemSubscriptionArguments<T>( 
   string machineName,
   string serverClass,
   string itemId,
   int requestedUpdateRate,
   OpcLabs.EasyOpc.DataAccess.Generic.EasyDAItemChangedEventHandler<T> callback,
   object state
)

public:
EasyDAItemSubscriptionArguments<T>( 
   String^ machineName,
   String^ serverClass,
   String^ itemId,
   int requestedUpdateRate,
   OpcLabs.EasyOpc.DataAccess.Generic.EasyDAItemChangedEventHandler<T^>^ callback,
   Object^ state
)

Parameters

machineName

Name of the machine. Determines the computer on which the OPC server is located. May be an empty string, in which case the OPC server is assumed to exist on the local computer or at the computer specified for it by DCOM configuration.

serverClass

Contains ProgID of the OPC server.

itemId

Contains OPC item identifier.

requestedUpdateRate

How often should the updates be received (number of milliseconds).

callback

A typed callback method to be invoked for each significant item change.

state

The state object (can be any value supplied by your code); available in event notifications.

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2012, Windows Server 2016; .NET Core, .NET 5, .NET 6: Linux, macOS, Microsoft Windows

Reference

EasyDAItemSubscriptionArguments<T> Class
EasyDAItemSubscriptionArguments<T> Members
Overload List