OPC Studio User's Guide and Reference
SubscribeCapture(IUAPubSubSniffer,UASubscribeDataSetArguments,UAPubSubCaptureEventHandler) Method



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.PubSub.Services Namespace > IPubSubSnifferExtension Class > SubscribeCapture Method : SubscribeCapture(IUAPubSubSniffer,UASubscribeDataSetArguments,UAPubSubCaptureEventHandler) Method

The value of this parameter cannot be null (Nothing in Visual Basic).

The value of this parameter cannot be null (Nothing in Visual Basic).

The value of this parameter can be null (Nothing in Visual Basic).

Syntax
'Declaration
 
<ExtensionAttribute()>
Public Overloads Shared Function SubscribeCapture( _
   ByVal sniffer As IUAPubSubSniffer, _
   ByVal subscribeDataSetArguments As UASubscribeDataSetArguments, _
   ByVal callback As UAPubSubCaptureEventHandler _
) As Integer
'Usage
 
Dim sniffer As IUAPubSubSniffer
Dim subscribeDataSetArguments As UASubscribeDataSetArguments
Dim callback As UAPubSubCaptureEventHandler
Dim value As Integer
 
value = IPubSubSnifferExtension.SubscribeCapture(sniffer, subscribeDataSetArguments, callback)

Parameters

sniffer

The value of this parameter cannot be null (Nothing in Visual Basic).

subscribeDataSetArguments

The value of this parameter cannot be null (Nothing in Visual Basic).

callback

The value of this parameter can be null (Nothing in Visual Basic).

Exceptions
ExceptionDescription

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

Remarks

This is an extension method (info: C#, VB.NET). In languages that have support for extensions methods (such as C# and VB.NET), you can use the extension method as if it were a regular method on the object that is its first parameter. In other languages (such as with Python.NET), you will call the extension as a static method, and pass it the object on which it acts as its first parameter.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

See Also