OPC Studio User's Guide and Reference
GetItemSubscriptionArguments Method (IEasyDAClient)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess Namespace > IEasyDAClient Interface : GetItemSubscriptionArguments Method
Item subscription handle as returned by the subscription method.
Obtains parameters of specified item subscription.
Syntax
'Declaration
 
<NotNullAttribute()>
<PureAttribute()>
Function GetItemSubscriptionArguments( _
   ByVal handle As Integer _
) As EasyDAItemSubscriptionArguments
'Usage
 
Dim instance As IEasyDAClient
Dim handle As Integer
Dim value As EasyDAItemSubscriptionArguments
 
value = instance.GetItemSubscriptionArguments(handle)
[NotNull()]
[Pure()]
EasyDAItemSubscriptionArguments GetItemSubscriptionArguments( 
   int handle
)
[NotNull()]
[Pure()]
EasyDAItemSubscriptionArguments^ GetItemSubscriptionArguments( 
   int handle
) 

Parameters

handle
Item subscription handle as returned by the subscription method.

Return Value

Returns an object that holds all information pertaining to the item subscription: server descriptor, item descriptor, and group parameters.

This method never returns null (Nothing in Visual Basic).

Exceptions
ExceptionDescription

One of the arguments provided to a method is not valid.

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 method is pure, i.e. it does not have observable side effects.

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