C＃文件打印未生成任何可用的输出

Question

我正在尝试使用C＃代码打印pdf文件。当我运行代码时，我得到显示“正在打印”但没有可用的pdf或xps输出的打印对话框。我是从控制台应用程序而不是gui执行此操作的。这是我当前的代码：

using System;
using System.Drawing;
using System.Drawing.Printing;
using System.IO;

public class PrintFile {

    public static void printFilePath(String filePath, String printer) {
        try {
            var streamToPrint = new StreamReader(filePath);
            try {
                PrintDocument pd = new PrintDocument();
                pd.PrinterSettings.PrinterName = printer;
                // set landscape to false
                pd.DefaultPageSettings.Landscape = false;
                // set margins to zero
                Margins margins = new Margins(0,0,0,0);
                pd.DefaultPageSettings.Margins = margins;
                // print
                pd.Print();
            } catch (Exception ex) {
            Console.WriteLine(ex);
            }
            finally {
                Console.WriteLine("closing");
                streamToPrint.Close();
            }
        } catch (Exception ex) {
            Console.WriteLine(ex);
        }
    }

    public static void Main(string[] args) {
        String filePath = "C:\\Projects\\C\\girl.pdf";
        String printer = "Microsoft Print to PDF";
        printFilePath(filePath, printer);
    }

}

感谢您的帮助。我还要设置份数，纸张尺寸（A4，e.t.c）以及黑白/彩色。谢谢。

更新：

根据下面的评论，我更新了代码。仍然无法获得它来打印确切的文档，但是至少它似乎可以打印一些东西。真的很感谢任何进一步的建设性反馈

using System;
using System.Drawing;
using System.Drawing.Printing;
using System.IO;

public class PrintFile {

    private static Font printFont;
    private static StreamReader streamToPrint;

    // The PrintPage event is raised for each page to be printed.
    private static 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);

        // Print each line of the file.
        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;
    }

    public static void printFilePath(String filePath, String printer) {
        try {
            streamToPrint = new StreamReader(filePath);
            try {
                printFont = new Font("Arial", 10);
                PrintDocument pd = new PrintDocument();
                pd.PrinterSettings.PrinterName = printer;
                pd.PrintPage += new PrintPageEventHandler(pd_PrintPage);
                // set landscape to false
                pd.DefaultPageSettings.Landscape = false;
                // set margins to zero
                Margins margins = new Margins(0,0,0,0);
                pd.DefaultPageSettings.Margins = margins;
                // print
                pd.Print();
            } catch (Exception ex) {
            Console.WriteLine(ex);
            }
            finally {
                Console.WriteLine("closing");
                streamToPrint.Close();
            }
        } catch (Exception ex) {
            Console.WriteLine(ex);
        }
    }

    public static void Main(string[] args) {
        String filePath = "C:\\Projects\\C\\nnkl.pdf";
        String printer = "Microsoft Print to PDF";
        printFilePath(filePath, printer);
    }

}