Inicia el proceso de impresión del documento.
Espacio de nombres: System.Drawing.Printing
Ensamblado: System.Drawing (en system.drawing.dll)
Visual Basic (Declaración)
Dim instance As PrintDocument
instance.Print
Para especificar el resultado que se va a imprimir, hay que controlar el evento PrintPage y utilizar Graphics que se incluyen en PrintPageEventArgs.
Se utiliza la propiedad PrinterSettings.PrinterName para especificar en qué impresora debe imprimirse el documento.
El método Print imprime el documento sin utilizar un cuadro de diálogo de impresión. Se utiliza PrintDialog cuando se desea ofrecer al usuario la posibilidad de elegir la configuración de impresión.
Nota |
|---|
| Si se produce una excepción que no controla el método Print durante la impresión, se anula la impresión del documento. |
En el siguiente ejemplo de código se imprime con la impresora predeterminada el archivo especificado mediante la línea de comandos.
Nota |
|---|
| El ejemplo requiere que cada línea se ajuste al ancho de página. |
Utilice los espacios de nombres System.ComponentModel, System.Drawing, System.Drawing.Printing, System.IO y System.Windows.Forms para este ejemplo.
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 Not (line Is 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
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();
}
}
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();
}
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
Seguridad de .NET Framework
Windows 98, Windows 2000 SP4, Windows Millennium, Windows Server 2003, Windows XP Media Center, Windows XP Professional x64, Windows XP SP2, Windows XP Starter Edition
.NET Framework no admite todas las versiones de cada plataforma. Para obtener una lista de las versiones admitidas, vea Requisitos del sistema.
.NET Framework
Compatible con: 2.0, 1.1, 1.0