SubscribeMultipleEvents(IEasyAEClient,AEEventsSubscriptionArguments[],EasyAENotificationEventHandler) Method

Visual Basic
C#
C++/CLI

'Declaration
 
<ExtensionAttribute()>
<NotNullAttribute()>
Public Overloads Shared Function SubscribeMultipleEvents( _
   ByVal client As IEasyAEClient, _
   ByVal eventsSubscriptionArgumentsArray() As AEEventsSubscriptionArguments, _
   ByVal callback As EasyAENotificationEventHandler _
) As Integer()

'Usage
 
Dim client As IEasyAEClient
Dim eventsSubscriptionArgumentsArray() As AEEventsSubscriptionArguments
Dim callback As EasyAENotificationEventHandler
Dim value() As Integer
 
value = IEasyAEClientExtension2.SubscribeMultipleEvents(client, eventsSubscriptionArgumentsArray, callback)

[Extension()]
[NotNull()]
public static int[] SubscribeMultipleEvents( 
   IEasyAEClient client,
   AEEventsSubscriptionArguments[] eventsSubscriptionArgumentsArray,
   EasyAENotificationEventHandler callback
)

[Extension()]
[NotNull()]
public:
static array<int>^ SubscribeMultipleEvents( 
   IEasyAEClient^ client,
   array<AEEventsSubscriptionArguments^>^ eventsSubscriptionArgumentsArray,
   EasyAENotificationEventHandler^ callback
)

Parameters

client: The client object that will perform the operation.
eventsSubscriptionArgumentsArray: Array of arguments, one element per each OPC events specification involved in the operation.
callback: A callback method to be invoked for each OPC event.

Return Value

The function returns an array of integer handles. Each such handle uniquely identifies the events subscription. The indices of elements in the output array are the same as those in the input array.

Exception Description

Exception	Description
System.ArgumentNullException	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.

System.ArgumentNullException

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.

The size of the input array will become the size of the output array. The element positions (indices) in the output array are the same as in the input array.

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

Reference

IEasyAEClientExtension2 Class
IEasyAEClientExtension2 Members
Overload List