PrintDocument Class
Defines a reusable object that sends output to a printer, when printing from a Windows Forms application.
Assembly: System.Drawing (in System.Drawing.dll)
Typically, you create an instance of the PrintDocument class, set properties such as the DocumentNameand PrinterSettings, and call the Print method to start the printing process. Handle the PrintPage event where you specify the output to print, by using the GraphicsGraphics property of the PrintPageEventArgs.
For more information about printing from a Windows Form application, see the Windows Forms Print Support. If you wish to print from a Windows Presentation Foundation application, see the System.Printing namespace.
The following code example prints the file named C:\My Documents\MyFile.txt on the default printer. To run the example, create a new Windows Forms project and paste the example code into the form, replacing the file contents. For C#, you will need to delete the Form1.Designer.cs file. Also, change the path to the file you want to print.
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The example requires that each line fits within the page width. |
Use the System.ComponentModel, System.Windows.Forms, System.Drawing, System.Drawing.Printing, and System.IO namespaces for this example.
Imports System Imports System.IO Imports System.Drawing Imports System.Drawing.Printing Imports System.Windows.Forms Public Class PrintingExample Inherits System.Windows.Forms.Form Private components As System.ComponentModel.Container Private printButton As System.Windows.Forms.Button Private printFont As Font Private streamToPrint As StreamReader Public Sub New() ' The Windows Forms Designer requires the following call. InitializeComponent() End Sub ' The Click event is raised when the user clicks the Print button. Private Sub printButton_Click(sender As Object, e As EventArgs) Try streamToPrint = New StreamReader("C:\My Documents\MyFile.txt") Try printFont = New Font("Arial", 10) Dim pd As New PrintDocument() AddHandler pd.PrintPage, AddressOf Me.pd_PrintPage pd.Print() Finally streamToPrint.Close() End Try Catch ex As Exception MessageBox.Show(ex.Message) End Try 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) ' Print each line of the file. 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 ' The Windows Forms Designer requires the following procedure. Private Sub InitializeComponent() Me.components = New System.ComponentModel.Container() Me.printButton = New System.Windows.Forms.Button() Me.ClientSize = New System.Drawing.Size(504, 381) Me.Text = "Print Example" printButton.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft printButton.Location = New System.Drawing.Point(32, 110) printButton.FlatStyle = System.Windows.Forms.FlatStyle.Flat printButton.TabIndex = 0 printButton.Text = "Print the file." printButton.Size = New System.Drawing.Size(136, 40) AddHandler printButton.Click, AddressOf printButton_Click Me.Controls.Add(printButton) End Sub ' This is the main entry point for the application. Public Shared Sub Main() Application.Run(New PrintingExample()) End Sub End Class
System.MarshalByRefObject
System.ComponentModel.Component
System.Drawing.Printing.PrintDocument
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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