OPC Studio User's Guide and Reference
PullResolverAccess Method (IEasyUASubscriberExtension)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.PubSub Namespace > IEasyUASubscriberExtension Class : PullResolverAccess Method
The subscriber object that will perform the operation.

This is typically the EasyUASubscriber object.

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

The number of milliseconds to wait, or System.Threading.Timeout.Infinite (-1) to wait indefinitely.

Valid values of this parameter are in the range from -1 to 2147483647 (Int32.MaxValue).

Attempts to pull a resolver access notification.
Syntax
'Declaration
 
<ExtensionAttribute()>
<CanBeNullAttribute()>
Public Shared Function PullResolverAccess( _
   ByVal subscriber As IEasyUASubscriber, _
   ByVal millisecondsTimeout As Integer _
) As EasyUAResolverAccessEventArgs
'Usage
 
Dim subscriber As IEasyUASubscriber
Dim millisecondsTimeout As Integer
Dim value As EasyUAResolverAccessEventArgs
 
value = IEasyUASubscriberExtension.PullResolverAccess(subscriber, millisecondsTimeout)
[Extension()]
[CanBeNull()]
public static EasyUAResolverAccessEventArgs PullResolverAccess( 
   IEasyUASubscriber subscriber,
   int millisecondsTimeout
)
[Extension()]
[CanBeNull()]
public:
static EasyUAResolverAccessEventArgs^ PullResolverAccess( 
   IEasyUASubscriber^ subscriber,
   int millisecondsTimeout
) 

Parameters

subscriber
The subscriber object that will perform the operation.

This is typically the EasyUASubscriber object.

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

millisecondsTimeout
The number of milliseconds to wait, or System.Threading.Timeout.Infinite (-1) to wait indefinitely.

Valid values of this parameter are in the range from -1 to 2147483647 (Int32.MaxValue).

Return Value

The event arguments, or null if no event is available within the specified time.

This method can return 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.

The value of an argument is outside the allowable range of values as defined by the invoked method.

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