在WPF 中可以通过PrintDialog 类方便的实现应用程序打印功能，本文将使用一个简单实例进行演示。首先在VS中编辑一个图形（如下图所示）。

将需要打印的内容放入同一个<Canvas>中，并起名为“printArea”，打印按键一般不是我们希望打印出来的内容，则将其放在<Canvas>外面。

<Window x:Class="WpfPrint.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        Title="MainWindow" Height="350" Width="500">

    <Grid>

        <Canvas x:Name="printArea">

            <Ellipse Canvas.Left="137" Canvas.Top="92" Height="100"

                     Stroke="Black" Width="200">

                <Ellipse.Fill>

                    <LinearGradientBrush>

                        <GradientStop Color="#FFAD0FC7" Offset="0" />

                        <GradientStop Color="#FF3359AD" Offset="1" />

                    </LinearGradientBrush>

                </Ellipse.Fill>

            </Ellipse>

            <TextBlock FontSize="20" FontWeight="Bold" Foreground="White"

                       Canvas.Left="151" Canvas.Top="129" Height="33">

                Visual Studio 2010</TextBlock>

            <Image Source="vs2010.jpg" Height="52" Width="90"

                   Canvas.Left="388" Canvas.Top="0" />

        </Canvas>

        <Button Content="Print" Click="Button_Click" Height="23"

                Margin="195,268,190,20" />

    </Grid>

</Window>

接下来编写Button_Click 事件，由于我们要打印<Canvas>所包含的内容，所以要通过PrintVisual 打印Visual 对象。

private void Button_Click(object sender, RoutedEventArgs e)

{

    PrintDialog dialog = new PrintDialog();

    if (dialog.ShowDialog() == true)

    {

        dialog.PrintVisual(printArea, "Print Test");

    }

}

运行程序，点击“Print”按键，弹出打印设置窗口，打印到XPS看看效果。

如下图所示，打印结果中只有<Canvas>中的内容。

WPF 打印控件无弹框打印

WPF中打印用到了 PrintDialog类。

其中设置打印属性的是PrintTicket，管理打印机的是PrintQueue。

实例如下：

public class PrintDialogHelper

{

private const string PrintServerName = "YULIN-PC";

private const string PrintName = "HP LaserJet M1522 series PCL6 Class Driver";

public PrintDialogHelper()

{

}

/// <summary>

/// 打印控件

/// </summary>

/// <param name="element"></param>

public void PrintVisual(FrameworkElement element)

{

var printDialog = new PrintDialog();

SetPrintProperty(printDialog);

var printQueue = SelectedPrintServer(PrintServerName, PrintName);

if (printQueue != null)

{

printDialog.PrintQueue = printQueue;

printDialog.PrintVisual(element, "");

}

}

/// <summary>

/// 查找并获取打印机

/// </summary>

/// <param name="printerServerName">服务器名字： Lee-pc</param>

/// <param name="printerName">打印机名字：Hp laserjet m1522 mfp series pcl 6 </param>

/// <returns></returns>

public PrintQueue SelectedPrintServer(string printerServerName, string printerName)

{

try

{

var printers = PrinterSettings.InstalledPrinters;//获取本机上的所有打印机

PrintServer printServer = null;

foreach (string printer in printers)

{

if (printer.Contains(printerName))

printServer = new PrintServer("\\\\" + printerServerName);

}

if (printServer == null) return null;//没有找到打印机服务器

var printQueue = printServer.GetPrintQueue(printerName);

return printQueue;

}

catch (Exception)

{

return null;//没有找到打印机

}

}

/// <summary>

/// 设置打印格式

/// </summary>

/// <param name="printDialog">打印文档</param>

/// <param name="pageSize">打印纸张大小 a4</param>

/// <param name="pageOrientation">打印方向 竖向</param>

public void SetPrintProperty(PrintDialog printDialog, PageMediaSizeName pageSize = PageMediaSizeName.ISOA4, PageOrientation pageOrientation = PageOrientation.Portrait)

{

var printTicket = printDialog.PrintTicket;

printTicket.PageMediaSize = new PageMediaSize(pageSize);//A4纸

printTicket.PageOrientation = pageOrientation;//默认竖向打印

}

}

巴特西

WPF备忘录（6）WPF实现打印功能

WPF 打印控件无弹框打印

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巴特西

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WPF 打印控件无弹框打印