'Declaration
 
<ExtensionAttribute()>
<ElementsNotNullAttribute()>
<NotNullAttribute()>
Public Overloads Shared Function QueryCategoryAttributes( _
   ByVal client As IEasyAEClient, _
   ByVal machineName As String, _
   ByVal serverClass As String, _
   ByVal categoryId As Long _
) As AEAttributeElementCollection

'Usage
 
Dim client As IEasyAEClient
Dim machineName As String
Dim serverClass As String
Dim categoryId As Long
Dim value As AEAttributeElementCollection
 
value = IEasyAEClientExtension.QueryCategoryAttributes(client, machineName, serverClass, categoryId)

[Extension()]
[ElementsNotNull()]
[NotNull()]
public static AEAttributeElementCollection QueryCategoryAttributes( 
   IEasyAEClient client,
   string machineName,
   string serverClass,
   long categoryId
)

[Extension()]
[ElementsNotNull()]
[NotNull()]
public:
static AEAttributeElementCollection^ QueryCategoryAttributes( 
   IEasyAEClient^ client,
   String^ machineName,
   String^ serverClass,
   int64 categoryId
) 

Parameters

client

The client object that will perform the operation.

machineName

Name of the machine. Determines the computer on which the OPC server is located. May be an empty string, in which case the OPC server is assumed to exist on the local computer or at the computer specified for it by DCOM configuration.

serverClass

Contains ProgID of the OPC server.

categoryId

An event category Id for which the event attributes should be queried.

Return Value

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2012, Windows Server 2016; .NET Core, .NET 5, .NET 6: Linux, macOS, Microsoft Windows

Reference

IEasyAEClientExtension Class
IEasyAEClientExtension Members
Overload List