QuickOPC User's Guide and Reference
PullMultipleNotifications Method (EasyAEClient)



OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.AlarmsAndEvents Namespace > EasyAEClient Class : PullMultipleNotifications Method
Maximum number of event notifications returned.
The number of milliseconds to wait, or System.Threading.Timeout.Infinite (-1) to wait indefinitely.
Attempts to pull multiple OPC events subscribed to by the SubscribeEvents method. Returns refresh or standard event notifications.
Syntax
'Declaration
 
Public Function PullMultipleNotifications( _
   ByVal maximumCount As Integer, _
   ByVal millisecondsTimeout As Integer _
) As EasyAENotificationEventArgs()
'Usage
 
Dim instance As EasyAEClient
Dim maximumCount As Integer
Dim millisecondsTimeout As Integer
Dim value() As EasyAENotificationEventArgs
 
value = instance.PullMultipleNotifications(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
ExceptionDescription
The value of an argument is outside the allowable range of values as defined by the invoked method.
A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.
Requirements

Target Platforms: .NET Framework: Windows 10, Windows Server 2012, Windows Server 2016; .NET Core, .NET 5: Linux, macOS, Microsoft Windows

See Also

Reference

EasyAEClient Class
EasyAEClient Members