Examples - Client Licensing - Obtain serial number

The example below shows how to obtain the serial number of the active license, and determine whether it is a demo or trial license.

.NET

C#
VB.NET

// Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in C# on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-CSharp .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.

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.
'
' Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
' OPC client and subscriber examples in VB.NET on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VBNET .
' Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
' a commercial license in order to use Online Forums, and we reply to every post.

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

COM

// Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in Object Pascal (Delphi) on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-OP .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.

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.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in PHP on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-PHP .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.

// 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.
REM
REM Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
REM OPC client and subscriber examples in Visual Basic on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VB .
REM Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
REM a commercial license in order to use Online Forums, and we reply to every post.

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

Python

Python (.NET)

# Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.
#
# Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
# OPC client and subscriber examples in Python on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-Python .
# Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
# a commercial license in order to use Online Forums, and we reply to every post.
# 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.')

Concepts

Licensing Elements

Application Deployment

Examples - Server Licensing

Examples - Server Licensing - Obtain serial number