PullMultipleItemChanges Method (EasyDAClient)

Attempts to pull multiple OPC item changes subscribed to by the IEasyDAClient.SubscribeMultipleItems or SubscribeItem method.

Syntax

public EasyDAItemChangedEventArgs[] PullMultipleItemChanges( 
   int maximumCount,
   int millisecondsTimeout
)

public:
array<EasyDAItemChangedEventArgs^>^ PullMultipleItemChanges( 
   int maximumCount,
   int millisecondsTimeout
)

'Declaration
 
Public Function PullMultipleItemChanges( _
   ByVal maximumCount As Integer, _
   ByVal millisecondsTimeout As Integer _
) As EasyDAItemChangedEventArgs()

'Usage
 
Dim instance As EasyDAClient
Dim maximumCount As Integer
Dim millisecondsTimeout As Integer
Dim value() As EasyDAItemChangedEventArgs
 
value = instance.PullMultipleItemChanges(maximumCount, millisecondsTimeout)

Parameters

maximumCount: Maximum number of event notifications returned.
millisecondsTimeout: The number of milliseconds to wait, or System.Threading.Timeout.Infinite (-1) to wait indefinitely.

Return Value

An array of event arguments, or null if no event is available within the specified time.

Exceptions

Exception	Description
System.ArgumentException	One of the arguments provided to a method is not valid.
System.ArgumentOutOfRangeException	The value of an argument is outside the allowable range of values as defined by the invoked method.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2012 R2, Windows Server 2016; .NET: Linux, macOS, Microsoft Windows

Reference

EasyDAClient Class
EasyDAClient Members

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