Bibliothèque de classes .NET Framework
PrintDocument..::.Print, méthode

Mise à jour : novembre 2007

Démarre le processus d'impression du document.

Espace de noms :  System.Drawing.Printing
Assembly :  System.Drawing (dans System.Drawing.dll)

Syntaxe

Visual Basic (Déclaration)
Public Sub Print
Visual Basic (Utilisation)
Dim instance As PrintDocument

instance.Print()
C#
public void Print()
VisualC++
public:
void Print()
J#
public void Print()
JScript
public function Print()
Exceptions

ExceptionCondition
InvalidPrinterException

L'imprimante désignée dans la propriété PrinterSettings..::.PrinterName n'existe pas.

Notes

Spécifiez la sortie à imprimer en gérant l'événement PrintPage et en utilisant Graphics inclus dans PrintPageEventArgs.

Utilisez la propriété PrinterSettings..::.PrinterName pour spécifier l'imprimante à utiliser pour imprimer le document.

La méthode Print imprime le document sans utiliser une boîte de dialogue d'impression. Utilisez PrintDialog lorsque vous souhaitez donner à l'utilisateur la possibilité de choisir les paramètres d'impression.

Remarque :

Si une exception qui n'est pas gérée par la méthode Print est levée pendant l'impression, l'impression du document est abandonnée.

Exemples

Dans l'exemple de code suivant, le fichier spécifié dans la ligne de commande est imprimé sur l'imprimante par défaut.

Remarque :

Il est nécessaire que chaque ligne corresponde à la largeur de page.

Utilisez les espaces de noms System.ComponentModel, System.Drawing, System.Drawing.Printing, System.IO et System.Windows.Forms pour cet exemple.

Visual Basic
Imports System
Imports System.IO
Imports System.Drawing
Imports System.Drawing.Printing
Imports System.Windows.Forms


Public Class PrintingExample
    Private printFont As Font
    Private streamToPrint As StreamReader
    Private Shared filePath As String

    Public Sub New()
        Printing()
    End Sub    

    ' The PrintPage event is raised for each page to be printed.
    Private Sub pd_PrintPage(sender As Object, ev As PrintPageEventArgs)
        Dim linesPerPage As Single = 0
        Dim yPos As Single = 0
        Dim count As Integer = 0
        Dim leftMargin As Single = ev.MarginBounds.Left
        Dim topMargin As Single = ev.MarginBounds.Top
        Dim line As String = Nothing

        ' Calculate the number of lines per page.
        linesPerPage = ev.MarginBounds.Height / printFont.GetHeight(ev.Graphics)

        ' Iterate over the file, printing each line.
        While count < linesPerPage
            line = streamToPrint.ReadLine()
            If line Is Nothing Then
                Exit While
            End If
            yPos = topMargin + count * printFont.GetHeight(ev.Graphics)
            ev.Graphics.DrawString(line, printFont, Brushes.Black, leftMargin, _
                yPos, New StringFormat())
            count += 1
        End While

        ' If more lines exist, print another page.
        If (line IsNot Nothing) Then
            ev.HasMorePages = True
        Else
            ev.HasMorePages = False
        End If
    End Sub

    ' Print the file.
    Public Sub Printing()
        Try
            streamToPrint = New StreamReader(filePath)
            Try
                printFont = New Font("Arial", 10)
                Dim pd As New PrintDocument()
                AddHandler pd.PrintPage, AddressOf pd_PrintPage
                ' Print the document.
                pd.Print()
            Finally
                streamToPrint.Close()
            End Try
        Catch ex As Exception
            MessageBox.Show(ex.Message)
        End Try
    End Sub 'Printing    

    ' This is the main entry point for the application.
    Public Shared Sub Main()
        Dim args() As String = System.Environment.GetCommandLineArgs()
        Dim sampleName As String = args(0)
        If args.Length <> 1 Then
            Console.WriteLine("Usage: " & sampleName & " <file path>")
            Return
        End If
        filePath = args(0)
    End Sub
End Class

C#
using System;
using System.IO;
using System.Drawing;
using System.Drawing.Printing;
using System.Windows.Forms;

 public class PrintingExample 
 {
     private Font printFont;
     private StreamReader streamToPrint;
     static string filePath;


     public PrintingExample() 
     {
         Printing();
     }

     // The PrintPage event is raised for each page to be printed.
     private void pd_PrintPage(object sender, PrintPageEventArgs ev) 
     {
         float linesPerPage = 0;
         float yPos =  0;
         int count = 0;
         float leftMargin = ev.MarginBounds.Left;
         float topMargin = ev.MarginBounds.Top;
         String line=null;

         // Calculate the number of lines per page.
         linesPerPage = ev.MarginBounds.Height  / 
            printFont.GetHeight(ev.Graphics) ;

         // Iterate over the file, printing each line.
         while (count < linesPerPage && 
            ((line=streamToPrint.ReadLine()) != null)) 
         {
            yPos = topMargin + (count * printFont.GetHeight(ev.Graphics));
            ev.Graphics.DrawString (line, printFont, Brushes.Black, 
               leftMargin, yPos, new StringFormat());
            count++;
         }

         // If more lines exist, print another page.
         if (line != null) 
            ev.HasMorePages = true;
         else 
            ev.HasMorePages = false;
     }

     // Print the file.
     public void Printing()
     {
         try 
         {
            streamToPrint = new StreamReader (filePath);
            try 
            {
               printFont = new Font("Arial", 10);
               PrintDocument pd = new PrintDocument(); 
               pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);
               // Print the document.
               pd.Print();
            } 
            finally 
            {
               streamToPrint.Close() ;
            }
        } 
        catch(Exception ex) 
        { 
            MessageBox.Show(ex.Message);
        }
     }

     // This is the main entry point for the application.
     public static void Main(string[] args) 
     {
        string sampleName = Environment.GetCommandLineArgs()[0];
        if(args.Length != 1)
        {
           Console.WriteLine("Usage: " + sampleName +" <file path>");
           return;
        }
        filePath = args[0];
        new PrintingExample();
     }
 }

VisualC++
#using <System.dll>
#using <System.Windows.Forms.dll>
#using <System.Drawing.dll>

using namespace System;
using namespace System::IO;
using namespace System::Drawing;
using namespace System::Drawing::Printing;
using namespace System::Windows::Forms;


public ref class PrintingExample
{
private:
   Font^ printFont;
   StreamReader^ streamToPrint;
   static String^ filePath;

public:
   PrintingExample()
   {
      Printing();
   }


private:

   // The PrintPage event is raised for each page to be printed.
   void pd_PrintPage( Object^ /*sender*/, PrintPageEventArgs^ ev )
   {
      float linesPerPage = 0;
      float yPos = 0;
      int count = 0;
      float leftMargin = (float)ev->MarginBounds.Left;
      float topMargin = (float)ev->MarginBounds.Top;
      String^ line = nullptr;

      // Calculate the number of lines per page.
      linesPerPage = ev->MarginBounds.Height / printFont->GetHeight( ev->Graphics );

      // Iterate over the file, printing each line.
      while ( count < linesPerPage && ((line = streamToPrint->ReadLine()) != nullptr) )
      {
         yPos = topMargin + (count * printFont->GetHeight( ev->Graphics ));
         ev->Graphics->DrawString( line, printFont, Brushes::Black, leftMargin, yPos, gcnew StringFormat );
         count++;
      }


      // If more lines exist, print another page.
      if ( line != nullptr )
            ev->HasMorePages = true;
      else
            ev->HasMorePages = false;
   }


public:

   // Print the file.
   void Printing()
   {
      try
      {
         streamToPrint = gcnew StreamReader( filePath );
         try
         {
            printFont = gcnew Font( "Arial",10 );
            PrintDocument^ pd = gcnew PrintDocument;
            pd->PrintPage += gcnew PrintPageEventHandler( this, &PrintingExample::pd_PrintPage );

            // Print the document.
            pd->Print();
         }
         finally
         {
            streamToPrint->Close();
         }

      }
      catch ( Exception^ ex ) 
      {
         MessageBox::Show( ex->Message );
      }

   }

   static void Main()
   {
      array<String^>^args = Environment::GetCommandLineArgs();
      String^ sampleName = args[ 0 ];
      if ( args->Length != 2 )
      {
         Console::WriteLine( "Usage: {0} <file path>", sampleName );
         return;
      }

      filePath = args[ 1 ];
      gcnew PrintingExample;
   }

};

int main()
{
   PrintingExample::Main();
}

J#
import System.*;
import System.IO.*;
import System.Drawing.*;
import System.Drawing.Printing.*;
import System.Windows.Forms.*;

public class PrintingExample
{
    private Font printFont;
    private StreamReader streamToPrint;
    private static String filePath;

    public PrintingExample()
    {
        Printing();
    } //PrintingExample

    // The PrintPage event is raised for each page to be printed.
    private void pd_PrintPage(Object sender, PrintPageEventArgs ev)
    {
        float linesPerPage = 0;
        float yPos = 0;
        int count = 0;
        float leftMargin = ev.get_MarginBounds().get_Left();
        float topMargin = ev.get_MarginBounds().get_Top();
        String line = null;

        // Calculate the number of lines per page.
        linesPerPage = ev.get_MarginBounds().get_Height() / 
            printFont.GetHeight(ev.get_Graphics());

        // Iterate over the file, printing each line.
        while ((count < linesPerPage && 
            (line = streamToPrint.ReadLine()) != null)) {
            yPos = topMargin + count * printFont.GetHeight(ev.get_Graphics());
            ev.get_Graphics().DrawString(line, printFont, Brushes.get_Black(),
                leftMargin, yPos, new StringFormat());
            count++;
        }

        // If more lines exist, print another page.
        if (line != null) {
            ev.set_HasMorePages(true);
        }
        else {
            ev.set_HasMorePages(false);
        }
    } //pd_PrintPage

    // Print the file.
    public void Printing()
    {
        try {
            streamToPrint = new StreamReader(filePath);
            try {
                printFont = new Font("Arial", 10);
                PrintDocument pd = new PrintDocument();
                pd.add_PrintPage(new PrintPageEventHandler(pd_PrintPage));

                // Print the document.
                pd.Print();
            }
            finally {
                streamToPrint.Close();
            }
        }
        catch (System.Exception ex) {
            MessageBox.Show(ex.get_Message());
        }
    } //Printing

    // This is the main entry point for the application.
    public static void main(String[] args)
    {
        String sampleName = Environment.GetCommandLineArgs()[0];
        if (args.length != 1) {
            Console.WriteLine(("Usage: " + sampleName + " <file path>"));
            return;
        }
        filePath = args[0];
        new PrintingExample();
    } //main
} //PrintingExample
Autorisations

Plateformes

Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professionnel Édition x64, Windows XP Starter Edition, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

Le .NET Framework et le .NET Compact Framework ne prennent pas en charge toutes les versions de chaque plateforme. Pour obtenir la liste des versions prises en charge, consultez Configuration requise du .NET Framework.

Informations de version

.NET Framework

Pris en charge dans : 3.5, 3.0, 2.0, 1.1, 1.0
Voir aussi

Référence

Mots clés :


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