'Declaration
 
<NotNullAttribute()>
Public Overloads Shared Function Create(Of TValue)( _
   ByVal serverDescriptor As ServerDescriptor, _
   ByVal itemDescriptor As DAItemDescriptor, _
   ByVal groupParameters As DAGroupParameters, _
   Optional ByVal state As Object _
) As DAItemChangedObservable(Of TValue)

'Usage
 
Dim serverDescriptor As ServerDescriptor
Dim itemDescriptor As DAItemDescriptor
Dim groupParameters As DAGroupParameters
Dim state As Object
Dim value As DAItemChangedObservable(Of TValue)
 
value = DAItemChangedObservable.Create(Of TValue)(serverDescriptor, itemDescriptor, groupParameters, state)

[NotNull()]
public static DAItemChangedObservable<TValue> Create<TValue>( 
   ServerDescriptor serverDescriptor,
   DAItemDescriptor itemDescriptor,
   DAGroupParameters groupParameters,
   object state
)

[NotNull()]
public:
static DAItemChangedObservable<TValue^>^ Creategeneric<typename TValue>
( 
   ServerDescriptor^ serverDescriptor,
   DAItemDescriptor^ itemDescriptor,
   DAGroupParameters^ groupParameters,
   Object^ state
) 

Parameters

serverDescriptor

The OPC server involved in the operation.

itemDescriptor

The OPC item to be subscribed to.

groupParameters

An object containing subscription parameters, such as the requested update rate.

state

The state object (can be any object supplied by your code); available in notifications.

Type Parameters

TValue

Return Value

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