Internet Printing Protocol (IPP) support with the LEADTOOLS Virtual Printer

Take the following steps to create and run a program that prints using the LEADTOOLS Network printer.

1. Make sure you have IIS installed on the machine correctly. And make sure the LEADTOOLS virtual printer web service is configured correctly.

2. Start Visual Studio .NET.

3. Choose File-> New->Project... from the menu.

4. In the New Project dialog box, choose either "Visual C# Projects" or "Visual Basic Projects" in the Projects Type List, and choose "Windows Application" in the Templates List.

5. Type the project name as "LEADTOOLS IPP Demo" in the Project Name field, and then click OK. If desired, type a new location for your project or select a directory using the Browse button, and then click OK.

6. In the "Solution Explorer" window, right-click 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\Dotnet4\Win32" folder and select the following DLLs:

Leadtools.dll
Leadtools.Forms.DocumentWriters.dll
Leadtools.Codecs.dll
Leadtools.WinForms.CommonDialogs.File.dll
Leadtools.Printer.dll

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

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

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

8. Declare the following private variable:

Private WithEvents _printer As Printer

private Printer _printer;

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

VB

Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs)  Try  Dim printerName As String = "LEADTOOLS Printer"  If (NotPrinter.IsLeadtoolsPrinter(printerName))Then  Dim documentPrinterRegPath As String = "SOFTWARE\LEAD Technologies, Inc.\Printer\"  Dim printerInfo As PrinterInfo = New PrinterInfo()  printerInfo.ProductName = printerName  printerInfo.PrinterName = printerName  printerInfo.RegistryKey = documentPrinterRegPath & printerName  printerInfo.RootDir = "C:\LEADTOOLS 19\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  _printer.EnableInternetPrinting = True   Catch ex As Exception  MessageBox.Show(Me, ex.Message)  End Try  style="color:Blue;">End Sub

     
private void Form1_Load(object sender, System.EventArgs e) 
{ 
   try 
   { 
      string printerName = "LEADTOOLS Printer"; 
      if (!Printer.IsLeadtoolsPrinter(printerName)) 
      { 
         string documentPrinterRegPath = @"SOFTWARE\LEAD Technologies, Inc.\Printer\"; 
         PrinterInfo printerInfo = new PrinterInfo(); 
         printerInfo.ProductName = printerName; 
         printerInfo.PrinterName = printerName; 
         printerInfo.RegistryKey = documentPrinterRegPath + printerName; 
         printerInfo.RootDir = @"C:\LEADTOOLS 19\Bin\Common\PrinterDriver\"; 
         printerInfo.Url = https://www.leadtools.com; 
         printerInfo.PrinterExe = Application.ExecutablePath; 
         Printer.Install(printerInfo); 
      } 
      _printer = new Printer(printerName); 
      _printer.EnableNetworkPrinting = true; 
      _printer.EnableInternetPrinting = true; 
      _printer.EmfEvent += new EventHandler<EmfEventArgs>(_printer_EmfEvent); 
      _printer.JobEvent += new EventHandler<JobEventArgs>(_printer_JobEvent); 
   } 
   catch (Exception ex) 
   { 
      MessageBox.Show(this, ex.Message); 
   } 
}

10. 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 _printer.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); 
}

11. 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) Handles _printer.JobEvent 
   Dim jobID As Integer = e.JobID 
   If e.JobEventState = EventState.JobStart Then 
      Try 
         MessageBox.Show(String.Format("Job ID: {0}", jobID)) 
      Catch ex As Exception 
         MessageBox.Show(ex.Message) 
         Throw 
      End Try 
   ElseIf 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) 
{ 
   int jobID = e.JobID; 
   if (e.JobEventState == EventState.JobStart) 
   { 
      try 
      {    MessageBox.Show(string.Format("Job ID: {0}", 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"); 
   } 
}