LicenseInfo Property (_EasyUASubscriber)

Provides dictionary of license data fields and their values.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<ElementsCanBeNullAttribute()>
<NotNullAttribute()>
ReadOnly Property LicenseInfo As StringObjectDictionary

'Usage
 
Dim instance As _EasyUASubscriber
Dim value As StringObjectDictionary
 
value = instance.LicenseInfo

[ElementsCanBeNull()]
[NotNull()]
StringObjectDictionary LicenseInfo {get;}

[ElementsCanBeNull()]
[NotNull()]
property StringObjectDictionary^ LicenseInfo {
   StringObjectDictionary^ get();
}

Remarks

This method or property does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.

Example

.NET

// Shows how to display all fields of the available license(s).

using System;
using System.Collections.Generic;
using OpcLabs.BaseLib.Collections.Specialized;
using OpcLabs.EasyOpc.UA;

namespace UADocExamples.Licensing
{
    partial class LicenseInfo
    {
        public static void AllFields()
        {
            // Instantiate the client object.
            var client = new EasyUAClient();

            // Obtain the license info.
            StringObjectDictionary licenseInfo = client.LicenseInfo;

            // Display all elements.
            foreach (KeyValuePair<string, object> pair in licenseInfo)
                Console.WriteLine($"{pair.Key}: {pair.Value}");
        }
    }
}

# Shows how to display all fields of the available license(s).

# The QuickOPC package is needed. Install it using "pip install opclabs_quickopc".
import opclabs_quickopc

# Import .NET namespaces.
from OpcLabs.EasyOpc.UA import *


# Instantiate the client object.
client = EasyUAClient()

# Obtain the license info.
licenseInfo = client.LicenseInfo

# Display all elements.
for pair in licenseInfo:
    print(pair.Key, ': ', pair.Value, sep='')

print()
print('Finished.')

CSharp
Python
VB.NET

// Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.

using System;
using OpcLabs.EasyOpc.UA;

namespace UADocExamples.Licensing
{
    partial class LicenseInfo
    {
        public static void SerialNumber()
        {
            // Instantiate the client object.
            var client = new EasyUAClient();

            // Obtain the serial number from the license info.
            long serialNumber = (uint)client.LicenseInfo["Multipurpose.SerialNumber"];

            // Display the serial number.
            Console.WriteLine("SerialNumber: {0}", serialNumber);

            // Determine whether we are running as demo or trial.
            if ((1111110000 <= serialNumber) && (serialNumber <= 1111119999))
                Console.WriteLine("This is a stock demo or trial license.");
            else
                Console.WriteLine("This is not a stock demo or trial license.");
        }
    }
}

# Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.

# The QuickOPC package is needed. Install it using "pip install opclabs_quickopc".
import opclabs_quickopc

# Import .NET namespaces.
from OpcLabs.EasyOpc.UA import *


# Instantiate the client object.
client = EasyUAClient()

# Obtain the serial number from the license info.
serialNumber = client.LicenseInfo.get_Item('Multipurpose.SerialNumber')

# Display the serial number.
print('SerialNumber: ', serialNumber, sep='')

# Determine whether we are running as demo or trial.
if (1111110000 <= serialNumber) and (serialNumber <= 1111119999):
    print('This is a stock demo or trial license.')
else:
    print('This is not a stock demo or trial license.')

print()
print('Finished.')

' Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.

Imports OpcLabs.EasyOpc.UA

Namespace Licensing
    Friend Class LicenseInfo
        Public Shared Sub SerialNumber()

            ' Instantiate the client object.
            Dim client = New EasyUAClient()

            ' Obtain the serial number from the license info.
            Dim serialNumber As Long = CUInt(client.LicenseInfo("Multipurpose.SerialNumber"))

            ' Display the serial number.
            Console.WriteLine("SerialNumber: {0}", serialNumber)

            ' Determine whether we are running as demo or trial.
            If (1111110000 <= serialNumber) And (serialNumber <= 1111119999) Then
                Console.WriteLine("This is a stock demo or trial license.")
            Else
                Console.WriteLine("This is not a stock demo or trial license.")
            End If
        End Sub
    End Class
End Namespace

Object Pascal
PHP
Visual Basic (VB 6.0)

// Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.

class procedure LicenseInfo.SerialNumber;
var
  Client: _EasyUAClient;
  SerialNumber: Int64;
begin
  // Instantiate the client object
  Client := CoEasyUAClient.Create;

  // Obtain the serial number from the license info.
  SerialNumber := Int64(client.LicenseInfo['Multipurpose.SerialNumber']);

  // Display the serial number.
  WriteLn('SerialNumber: ', SerialNumber);

  // Determine whether we are running as demo or trial.
  if ((1111110000 <= SerialNumber) and (SerialNumber <= 1111119999)) then
    WriteLn('This is a stock demo or trial license.')
  else
    WriteLn('This is not a stock demo or trial license.');
end;

// This example shows how to obtain nodes under a given node of the OPC-UA address space. 
// Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.

// Instantiate the client object
$Client = new COM("OpcLabs.EasyOpc.UA.EasyUAClient");

// Obtain the serial number from the license info.
$SerialNumber = $Client->LicenseInfo["Multipurpose.SerialNumber"];

// Display the serial number.
printf("SerialNumber: %s\n", $SerialNumber);

// Determine whether we are running as demo or trial.
if ((1111110000 <= $SerialNumber) and ($SerialNumber <= 1111119999))
    printf("This is a stock demo or trial license.\n");
  else
    printf("This is not a stock demo or trial license.\n");

Rem Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.

Private Sub LicenseInfo_SerialNumber_Command_Click()
    OutputText = ""
        
    ' Instantiate the client object
    Dim client As New EasyUAClient

    ' Obtain the serial number from the license info.
    Dim serialNumber As Long
    serialNumber = client.LicenseInfo("Multipurpose.SerialNumber")
    
    ' Display the serial number.
    OutputText = OutputText & "Serial number: " & serialNumber & vbCrLf
    
    ' Determine whether we are running as demo or trial.
    If (1111110000 <= serialNumber) And (serialNumber <= 1111119999) Then
        OutputText = OutputText & "This is a stock demo or trial license." & vbCrLf
    Else
        OutputText = OutputText & "This is not a stock demo or trial license." & vbCrLf
    End If
End Sub

Requirements

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

Reference

_EasyUASubscriber Interface
_EasyUASubscriber Members

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