How to use the LEADTOOLS Network Virtual Printer - Server Application

Take the following steps to create and run a program that print using LEADTOOLS Network printer on the server machine.

Make sure you have IIS installed on the machine correctly. And make sure the LEADTOOLS virtual printer web service is configured correctly.
Start Visual Studio.
Choose File-> New-> Project... from the menu.
In the New Project dialog box, choose either "Visual C# Projects" or "VB Projects" in the Projects Type List, and choose "Windows Application " in the Templates List.
Type the project name as "PRINTER DRIVER SERVER" in the Project Name field, and then choose OK. If desired, type a new location for your project or select a directory using the Browse button, and then choose OK.
In the "Solution Explorer" window, right-click on the "References" folder, and select "Add Reference..." from the context menu. In the "Add Reference" dialog box, select the ".NET" tab and browse to the Leadtools For .NET "<LEADTOOLS_INSTALLDIR>\Bin\Dotnet\Win32 " folder and select the following DLLs:
- Leadtools.dll
- Leadtools.Document.Writer.dll
- Leadtools.Codecs.dll
- Leadtools.WinForms.CommonDialogs.File.dll
- Leadtools.Printer.dll

Switch to Form1 code view (right-click Form1 in the solution explorer then select View Code ) and add the following lines at the beginning of the file:

Imports System 
Imports System.Text 
Imports System.Diagnostics 
Imports System.Drawing.Imaging 
Imports System.Windows.Forms 
Imports Leadtools 
Imports Leadtools.Printer 
Imports Leadtools.Codecs 
Imports Leadtools.Document.Writer

using System; 
using System.Text; 
using System.Diagnostics; 
using System.Drawing.Imaging; 
using System.Windows.Forms; 
using Leadtools; 
using Leadtools.Printer; 
using Leadtools.Codecs; 
using Leadtools.Document.Writer;

Declare the following private variable:

Private WithEvents _printer as Printer

Printer _printer;

Add an event handler to the Form1 Load event and code it as follows:

Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) 
       Try 
              Dim printerName As String = "LEADTOOLS Printer" 
              If (Not Printer.IsLeadtoolsPrinter(printerName)) Then 
                 Dim printerPassword As String = "1234" 
                 Dim documentPrinterRegPath As String = "SOFTWARE\LEAD Technologies, Inc.\Printer\" 
                 Dim printerInfo As PrinterInfo = New PrinterInfo() 
                 printerInfo.ProductName = printerName 
                 printerInfo.PrinterName = printerName 
                 printerInfo.Password = printerPassword 
                 printerInfo.RegistryKey = documentPrinterRegPath & printerName 
                 printerInfo.RootDir = "C:\LEADTOOLS 20\Bin\Common\PrinterDriver\" 
                 printerInfo.Url = "https://www.leadtools.com" 
                 printerInfo.PrinterExe = Application.ExecutablePath 
                 Printer.Install(printerInfo) 
              End If 
              _printer = New Printer(printerName) 
              _printer.EnableNetworkPrinting = True 
              AddHandler _printer.EmfEvent, AddressOf Of EmfEventArgs 
              AddHandler _printer.JobEvent, AddressOf Of JobEventArgs 
       Catch ex As Exception 
              MessageBox.Show(Me, ex.Message) 
       End Try 
End Sub

private void Form1_Load(object sender, System.EventArgs e) 
{ 
   try 
   { 
      string printerName = "LEADTOOLS Printer"; 
      if (!Printer.IsLeadtoolsPrinter(printerName)) 
      { 
         string printerPassword = "1234"; 
         string documentPrinterRegPath = @"SOFTWARE\LEAD Technologies, Inc.\Printer\"; 
         PrinterInfo printerInfo = new PrinterInfo(); 
         printerInfo.ProductName = printerName; 
         printerInfo.PrinterName = printerName; 
         printerInfo.Password = printerPassword; 
         printerInfo.RegistryKey = documentPrinterRegPath + printerName; 
         printerInfo.RootDir = @"C:\LEADTOOLS 20\Bin\Common\PrinterDriver\"; 
         printerInfo.Url = "https://www.leadtools.com"; 
         printerInfo.PrinterExe = Application.ExecutablePath; 
         Printer.Install(printerInfo); 
      } 
      _printer = new Printer(printerName); 
      _printer.EnableNetworkPrinting = true; 
      _printer.EmfEvent += new EventHandler<EmfEventArgs>(_printer_EmfEvent); 
      _printer.JobEvent += new EventHandler<JobEventArgs>(_printer_JobEvent); 
   } 
   catch (Exception ex) 
   { 
      MessageBox.Show(this, ex.Message); 
   } 
}

Add an event handler to the Emf event and code it as follows:

Private Sub printerTest_EmfEvent(ByVal sender As Object, ByVal e As EmfEventArgs) Handles printerTest.EmfEvent 
   System.IO.File.WriteAllBytes("c:\LEADTOOLS_IMAGE1.emf", e.Stream.ToArray()) 
   Dim metaFile As New Metafile(e.Stream) 
End Sub

void _printer_EmfEvent(object sender, EmfEventArgs e) 
{ 
  System.IO.File.WriteAllBytes(@"c:\LEADTOOLS_IMAGE1.emf", e.Stream.ToArray()); 
  Metafile metaFile = new Metafile(e.Stream); 
}

Add an event handler to the job info event and code it as follows:

Private Sub _printer_JobEvent(ByVal sender As Object, ByVal e As JobEventArgs) 
   Dim printerName As String = e.PrinterName 
   Dim jobID As Integer = e.JobID 
   If e.JobEventState = EventState.JobStart Then 
      Try 
         'Data is a string. The user specifies the data to be sent from the client machine 
         'check user demo for more info 
         Dim enc As Encoding = Encoding.ASCII 
         Dim strData As String = enc.GetString(_printer.RemoteData.UserData) 
         MessageBox.Show(String.Format("Job {0} was started with remote data " & strData, jobID)) 
      Catch ex As Exception 
         MessageBox.Show(ex.Message) 
         Throw 
      End Try 
   Else If e.JobEventState = EventState.JobEnd Then 
      MessageBox.Show(String.Format("Job {0} was Ended", jobID)) 
      Process.Start("mspaint", "c:\LEADTOOLS_IMAGE1.emf") 
   End If 
End Sub

void _printer_JobEvent(object sender, JobEventArgs e) 
{ 
   string printerName = e.PrinterName; 
   int jobID = e.JobID; 
   if (e.JobEventState == EventState.JobStart) 
   { 
      try 
      { 
         // Data is a string. The user specifies the data to be sent from the client machine 
         // check user demo for more info 
         Encoding enc = Encoding.ASCII; 
         String strData = enc.GetString(_printer.RemoteData.UserData); 
         MessageBox.Show(string.Format("Job {0} was started with remote data " + strData, jobID)); 
      } 
      catch (Exception ex) 
      { 
         MessageBox.Show(ex.Message); 
         throw; 
      } 
   } 
   else if (e.JobEventState == EventState.JobEnd) 
   { 
      MessageBox.Show(string.Format("Job 0 was Ended", jobID)); 
      Process.Start("mspaint", @"c:\LEADTOOLS_IMAGE1.emf"); 
   } 
}

Note: when the job event is received, the _printer.RemoteDate will return the data sent from the remote machine, this data will be available until demo receives EventState.JobEnd _printer.RemoteDate will contain row data, this raw data will be specified by the user.

Build, and Run the program to test it.
Make sure to share the new printer after installing it.
Now the server demo is ready to receive print jobs from the client machine How To Use The Virtual Printer Driver Network Client.

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