'Declaration
 
<ExtensionAttribute()>
<ElementsNotNullAttribute()>
<NotNullAttribute()>
Public Overloads Shared Function DiscoverLocalApplications( _
   ByVal client As IEasyUAClient, _
   ByVal discoveryHost As String, _
   ByVal applicationTypes As UAApplicationTypes, _
   ByVal flat As Boolean _
) As UADiscoveryElementCollection

'Usage
 
Dim client As IEasyUAClient
Dim discoveryHost As String
Dim applicationTypes As UAApplicationTypes
Dim flat As Boolean
Dim value As UADiscoveryElementCollection
 
value = IEasyUAClientExtension.DiscoverLocalApplications(client, discoveryHost, applicationTypes, flat)

[Extension()]
[ElementsNotNull()]
[NotNull()]
public static UADiscoveryElementCollection DiscoverLocalApplications( 
   IEasyUAClient client,
   string discoveryHost,
   UAApplicationTypes applicationTypes,
   bool flat
)

[Extension()]
[ElementsNotNull()]
[NotNull()]
public:
static UADiscoveryElementCollection^ DiscoverLocalApplications( 
   IEasyUAClient^ client,
   String^ discoveryHost,
   UAApplicationTypes applicationTypes,
   bool flat
) 

Parameters

client

The client object that will perform the operation.

discoveryHost

The name of the machine that runs the discovery server that will be used for discovery task.

applicationTypes

Application types to be discovered.

flat

Determines whether one element will be returned for each discovery URI.

Return Value

This method uses the so-called Local Discovery Server (LDS). You can influence how the discovery works using the properties in static SharedParameters.

Invokes the FindServers service.

See also in Knowledge Base: Technical note-OPC UA Discovery in QuickOPC.

When the flat parameter is false, the discovery query returns one OpcLabs.EasyOpc.UA.Discovery.UADiscoveryElement for each application found, and its OpcLabs.EasyOpc.UA.Discovery.IUAReadOnlyApplicationElement.DiscoveryUriStrings property contains one or more application discovery URLs.

When the flat parameter is true, the discovery query returns one OpcLabs.EasyOpc.UA.Discovery.UADiscoveryElement for each discovery URL of each application found. In this case, the OpcLabs.EasyOpc.UA.Discovery.IUAReadOnlyApplicationElement.DiscoveryUriStrings property of each returned application element contains precisely one string, and you can therefore use the OpcLabs.EasyOpc.UA.Discovery.IUAReadOnlyApplicationElement.DiscoveryUriString property instead to obtain the discovery URL.

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