PrintDocument.Print Method ()
Starts the document's printing process.
Assembly: System.Drawing (in System.Drawing.dll)
| Exception | Condition |
|---|---|
| InvalidPrinterException | The printer named in the PrinterSettings.PrinterName property does not exist. |
Specify the output to print by handling the PrintPage event and by using the Graphics included in the PrintPageEventArgs.
Use the PrinterSettings.PrinterName property to specify which printer should print the document.
The Print method prints the document without using a print dialog. Use a PrintDialog when you want to offer the user the ability to choose print settings.
Note |
|---|
If an exception that is not handled by the Print method is thrown during printing, the printing of the document is aborted. |
The following code example prints the file that is specified through the command line to the default printer.
Note |
|---|
The example requires that each line fits within the page width. |
Use the System.ComponentModel, System.Drawing, System.Drawing.Printing, System.IO, and System.Windows.Forms namespaces for this example.
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
for safe printing from a restricted dialog box. Associated enumeration: PrintingPermissionLevel.SafePrinting
Available since 1.1
