调用虚拟打印机，文件转pdf代码,CSharp代码库,德仔网

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【CSharp】调用虚拟打印机，文件转pdf
作者:Dezai.CN / 发布于2013/2/20/ 781
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

using System.IO;
using Microsoft.Win32;
using System.Diagnostics;
using System.Runtime.InteropServices;
using Microsoft.Office.Interop.Excel;
using System.Reflection;
using System.Drawing.Imaging;
using iTextSharp;
using iTextSharp.text;
using iTextSharp.text.pdf;
using iTextSharp.text.html;
using iTextSharp.text.html.simpleparser;
using iTextSharp.text.xml;
using ACAWebThumbLib;
using System.Drawing.Printing;

/// <summary>
/// printerPdf 的摘要说明
/// </summary>
public class printerPdf
{
  
 public printerPdf()
 {
  //
  // TODO: 在此处添加构造函数逻辑
  //
 }
 private string fileSavePath = System.Web.HttpContext.Current.Server.MapPath("~/upload");

        [DllImport("winspool.drv")]
        public static extern bool SetDefaultPrinter(string Name);

        [DllImport("user32.dll")]
        public static extern bool SendNotifyMessage(int HWND_BROADCAST, int WM_WININICHANGE, int f_int, string f_Note);

        [DllImport("shell32.dll ")]
        public static extern IntPtr ShellExecute(
        IntPtr hwnd,
        string lpOperation,
        string lpFile,
        string lpParameters,
        string lpDirectory,
        int nShowCmd);

        [DllImport("User32.dll", CharSet = CharSet.Auto)]
        public static extern int GetWindowThreadProcessId(IntPtr hwnd, out   int ID);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern IntPtr FindWindowEx(IntPtr parent /*HWND*/,
        IntPtr next /*HWND*/,
        string sClassName,
        IntPtr sWindowTitle);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern int GetWindowText(IntPtr hWnd, out STRINGBUFFER ClassName, int nMaxCount);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern int SendMessage(IntPtr hWnd, int msg, int wParam, int lParam);

        [DllImport("user32")]
        private static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);

        public struct STRINGBUFFER
        {
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 256)]
            public string szText;
        }

        System.Web.UI.Page workingPage = null;

        private string currentPrinterName = string.Empty;

        private string PrinterName = string.Empty;

        private string fileName = string.Empty;

        private string fileExtend = string.Empty;

        private string filePath = string.Empty;

        Object obj_printer_settings;

        const int HWND_BROADCAST = 0xFFFF;

        const int WM_WININICHANGE = 0x001A;

        Type oType = null;

      //  public List<string> listExtend = new List<string>() { "jpg","jpeg","bmp","gif","png","doc","docx","txt","xls","xlsx","htm","html","xhtml" };

        public printerPdf(System.Web.UI.Page _workingPage)
        {
            workingPage = _workingPage;
        }

        /// <summary>
        /// 读取文件的扩展名
        /// </summary>
        /// <param name="strFileFullName"></param>
        /// <returns></returns>
        public string GetFileExtendName(string strFileFullName)
        {
            return strFileFullName.Substring(strFileFullName.LastIndexOf(".") + 1).ToLower();
        }

        /// <summary>
        /// 读取文件名
        /// </summary>
        /// <param name="strFileFullName"></param>
        /// <returns></returns>
        public string GetFileName(string strFileFullName)
        {
            string tmpFileName = strFileFullName.Substring(0,strFileFullName.LastIndexOf("."));

            return tmpFileName.Substring(tmpFileName.LastIndexOf("\\")+1);
        }

        /// <summary>
        /// 获取printer信息
        /// </summary>
        /// <param name="printerName"></param>
        /// <param name="obj_printer_settings"></param>
        public void GetPrinterName(ref string printerName, ref object printerSettings,ref System.Type oType)
        {

            string progid = "Bullzip.PDFPrinterSettings";
            oType = System.Type.GetTypeFromProgID(progid);
          
            printerSettings = System.Activator.CreateInstance(oType);

            printerName = (string)oType.InvokeMember("GetPrinterName", System.Reflection.BindingFlags.InvokeMethod, null, printerSettings, null);

        }
        /// <summary>
        /// 获取ImageFormat
        /// </summary>
        /// <param name="extend"></param>
        /// <returns></returns>
        public System.Drawing.Imaging.ImageFormat GetImageFormat(string extend)
        {
            System.Drawing.Imaging.ImageFormat fomat = null;

            switch (extend.ToLower())
            { 
                case "jpg":
                case "jpeg":
                    fomat = System.Drawing.Imaging.ImageFormat.Jpeg;
                    break;
                case "gif":
                    fomat = System.Drawing.Imaging.ImageFormat.Gif;
                    break;
                case "bmp":
                    fomat = System.Drawing.Imaging.ImageFormat.Bmp;
                    break;
                case "png":
                    fomat = System.Drawing.Imaging.ImageFormat.Png;
                    break;
            }
            return fomat;
        }

        //public void ConvertToPDF(string fileName)
        //{
        //    if (string.IsNullOrEmpty(fileName))
        //        return;

        //    if (!listExtend.Contains(GetFileExtendName(fileName)))
        //        return;

        //    switch (GetFileExtendName(fileName))
        //    { 
        //        case"doc":
        //        case "docx":
        //            PrintDOCToPDF(fileName);
        //            break;
        //        case "xls":
        //        case "xlsx":
        //            PrintSheetToPDF (fileName);
        //            break;
        //        case "txt":
        //            PrintNoteToPDF(fileName);
        //            break;
        //        case "htm":
        //        case "html":
        //        case "xhtml":
        //            HtmlToPDF(fileName);
        //            break;
        //        default:
        //            PrintImageToPDF(fileName);
        //            break;
        //    }
        //}

        /// <summary>
        /// Html转pdf
        /// </summary>
        /// <param name="fileName"></param>
        public void HtmlToPDF(string fileName)
        {
            string tmpName=GetFileName(fileName);

            filePath=fileSavePath + "\\"+tmpName+".jpg";

            ThumbMakerClass markerClass = new ThumbMakerClass();

            markerClass.SetURL(fileSavePath + "\\" + fileName);

            markerClass.StartSnap();

            //markerClass.SetThumbSize(4000, markerClass.GetThumbHeight(), 0);

            markerClass.SaveImage(filePath);

            PrintImageToPDF(tmpName+".jpg");

            if (File.Exists(filePath))
                File.Delete(filePath);
        }

        /// <summary>
        /// image转pdf
        /// </summary>
        /// <param name="fileInputName"></param>
        public void PrintImageToPDF(string fileInputName)
        {
            Document document = null;

            PdfWriter writer=null;

            System.Drawing.Image sourceImg=null;

            iTextSharp.text.Image pdfImage=null;

            try
            {
                filePath = fileSavePath + "\\" + GetFileName(fileInputName) + ".pdf";

              iTextSharp.text.Rectangle rectPageSize = new iTextSharp.text.Rectangle(PageSize.A4);

            rectPageSize = rectPageSize.Rotate();

             document = new Document(rectPageSize, 25, 25, 25, 25);  

             writer = PdfWriter.GetInstance(document, new FileStream(filePath, FileMode.Create));

            document.Open();

            sourceImg = System.Drawing.Image.FromFile(fileSavePath+"\\"+fileInputName);

            pdfImage = iTextSharp.text.Image.GetInstance(sourceImg,GetImageFormat(GetFileExtendName(fileInputName)));

            pdfImage.Alignment = iTextSharp.text.Image.ALIGN_CENTER;

            float height=document.Top - document.TopMargin;
            //图片原始大小
            pdfImage.ScaleToFit(sourceImg.Width > document.Right?document.Right:sourceImg.Width,sourceImg.Height>height?height:sourceImg.Height);         

            //pdfImage.ScaleToFit(document.Right ,height);

            document.Add(pdfImage);

            sourceImg = null;

            pdfImage = null;

            document.Close();

            writer.Close();         
            }
            catch(Exception e) 
            {
                sourceImg = null;

                pdfImage = null;

                document.Close();

                writer.Close();         
            }             
        }

        /// <summary>
        /// txt转换为pdf
        /// </summary>
        /// <param name="file_inputname"></param>
        public void PrintTXTToPDF(string fileInputName)
        {
            GetPrinterName(ref PrinterName, ref obj_printer_settings,ref oType);
            try
            {                
                PrintDocument prtdoc = new PrintDocument();

                currentPrinterName = prtdoc.PrinterSettings.PrinterName;   //获取默认的打印机名 

                //更改默认打印机
                SetDefaultPrinter(PrinterName.Trim());
                //通知更改
                SendNotifyMessage(HWND_BROADCAST, WM_WININICHANGE, 0, "windows");

                if (fileInputName == "")
                {
                    return;
                }

                filePath = fileSavePath + "\\" + GetFileName(fileInputName) + ".pdf";

                oType.InvokeMember("Init", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, null);

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "output",filePath });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "showsettings", "never" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "ShowPDF", "no" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "ShowProgress", "no" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "ShowProgressFinished", "no" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "SuppressErrors", "yes" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "ConfirmOverwrite", "no" });

                oType.InvokeMember("WriteSettings", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { true });

                if (File.Exists(filePath) == true)
                {
                    File.Delete(filePath);
                }

                ShellExecute(IntPtr.Zero, "print", fileSavePath+"\\"+fileInputName, "", "", 0);

                IntPtr hParent = IntPtr.Zero;
                IntPtr hNext = IntPtr.Zero;
                string sClassNameFilter = "#32770";

                for (int f_intStep = 1; f_intStep < 20000; f_intStep++)
                {
                    hNext = FindWindowEx(hParent, hNext, sClassNameFilter, IntPtr.Zero);
                    if (!hNext.Equals(IntPtr.Zero))
                    {
                        ShowWindow(hNext, 0);
                    }

                    System.Threading.Thread.Sleep(100);

                    if (File.Exists(filePath) == true)
                    {
                        break;
                    }
                }

                obj_printer_settings = null;

                //更改默认打印机
                SetDefaultPrinter(currentPrinterName.Trim());
                //通知更改
                SendNotifyMessage(HWND_BROADCAST, WM_WININICHANGE, 0, "windows");
            }
            catch (Exception e)
            {
                obj_printer_settings = null;
                //throw e;
            }
        }

        /// <summary>
        /// excel转换为pdf
        /// </summary>
        /// <param name="file_inputname"></param>
        public void PrintSheetToPDF(string fileInputName)
        {
            try
            {
                GetPrinterName(ref PrinterName, ref obj_printer_settings, ref oType);

                PrintDocument prtdoc = new PrintDocument();

                currentPrinterName = prtdoc.PrinterSettings.PrinterName;   //获取默认的打印机名 

                //更改默认打印机
                SetDefaultPrinter(PrinterName.Trim());
                //通知更改
                SendNotifyMessage(HWND_BROADCAST, WM_WININICHANGE, 0, "windows");

                if (fileInputName == "")
                {
                    return;
                }

                filePath = fileSavePath + "\\" + GetFileName(fileInputName) + ".pdf";

                oType.InvokeMember("Init", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, null);

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "output", filePath });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "showsettings", "never" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "ShowPDF", "no" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "ShowProgress", "no" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "ShowProgressFinished", "no" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "SuppressErrors", "yes" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "ConfirmOverwrite", "no" });

                oType.InvokeMember("WriteSettings", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { true });

                if (File.Exists(filePath) == true)
                {
                    File.Delete(filePath);
                }

                object objMissing = System.Type.Missing;

                object objValue = true;

                Microsoft.Office.Interop.Excel.Application objExcel = new Microsoft.Office.Interop.Excel.Application();

                Microsoft.Office.Interop.Excel.Workbook objWorkbook = objExcel.Workbooks.Open(fileSavePath+"\\"+fileInputName, objMissing, objValue, objMissing, objMissing,objMissing, objMissing, objMissing, objMissing, objMissing, objMissing, objMissing, objMissing, objMissing, objMissing);

                objExcel.Visible = false;

                for (int i = 1; i < objWorkbook.Worksheets.Count; i++)
                {
                    _Worksheet active_workbook = (_Worksheet)objExcel.Worksheets.get_Item(i);

                    active_workbook.PageSetup.Zoom = false;

                    active_workbook.PageSetup.FitToPagesWide = 1;

                    active_workbook.PageSetup.FitToPagesTall = 10;
                }

                objExcel.ActiveWorkbook.PrintOut(objMissing, objMissing, objMissing, objMissing, objMissing, objMissing, objMissing, objMissing);

                for (int f_intStep = 1; f_intStep < 20000; f_intStep++)
                {
                    System.Threading.Thread.Sleep(100);

                    if (File.Exists(filePath) == true)
                    {
                        break;
                    }
                }

                objWorkbook.Close(false, fileInputName, false);

                objExcel.Quit();

                objWorkbook = null;

                objExcel = null;

                int k = 0;

                IntPtr t = new IntPtr(objExcel.Hwnd);

                GetWindowThreadProcessId(t, out   k);

                System.Diagnostics.Process p = System.Diagnostics.Process.GetProcessById(k);

                p.Kill();

                obj_printer_settings = null;

                //更改默认打印机
                SetDefaultPrinter(currentPrinterName.Trim());
                //通知更改
                SendNotifyMessage(HWND_BROADCAST, WM_WININICHANGE, 0, "windows");
            }
            catch (Exception e)
            {
                obj_printer_settings = null;
                //throw e;
            }
        }

        /// <summary>
        /// word 转换为pdf 
        /// </summary>
        /// <param name="file_inputname"></param>
        public void PrintDOCToPDF(String fileInputName)
        {
            object appword;
            object doc;
            object docs;
            object docs1;

            try
            {
                GetPrinterName(ref PrinterName, ref obj_printer_settings, ref oType);

                PrintDocument prtdoc = new PrintDocument();

                currentPrinterName = prtdoc.PrinterSettings.PrinterName;   //获取默认的打印机名 

                //更改默认打印机
                SetDefaultPrinter(PrinterName.Trim());
                //通知更改
                SendNotifyMessage(HWND_BROADCAST, WM_WININICHANGE, 0, "windows");

                if (fileInputName == "")
                {
                    return;
                }

                filePath = fileSavePath + "\\" + GetFileName(fileInputName) + ".pdf";

                oType.InvokeMember("Init", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, null);

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "output", filePath });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "showsettings", "never" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "ShowPDF", "no" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "ShowProgress", "no" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "ShowProgressFinished", "no" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "SuppressErrors", "yes" });

                oType.InvokeMember("SetValue", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { "ConfirmOverwrite", "no" });

                oType.InvokeMember("WriteSettings", System.Reflection.BindingFlags.InvokeMethod, null, obj_printer_settings, new object[] { true });

                if (File.Exists(filePath) == true)
                {
                    File.Delete(filePath);
                }

                System.Type wordType = System.Type.GetTypeFromProgID("Word.Application");

                appword = System.Activator.CreateInstance(wordType);

                docs1 = wordType.InvokeMember("Documents", System.Reflection.BindingFlags.GetProperty, null, appword, null);

                object all = appword.GetType().InvokeMember("AddIns", BindingFlags.GetProperty, System.Type.DefaultBinder, appword, null);

                docs1.GetType().InvokeMember("Unload", System.Reflection.BindingFlags.InvokeMethod, System.Type.DefaultBinder, all, new Object[] { false });

                docs = wordType.InvokeMember("Documents", System.Reflection.BindingFlags.GetProperty, null, appword, null);

                wordType.InvokeMember("Visible", System.Reflection.BindingFlags.SetProperty, null, appword, new Object[] { false });

                doc = docs.GetType().InvokeMember("Open", System.Reflection.BindingFlags.InvokeMethod, null, docs, new Object[] {  fileSavePath+"\\"+fileInputName });

                wordType.InvokeMember("PrintOut", System.Reflection.BindingFlags.InvokeMethod, null, appword, new Object[] { null });

                IntPtr hParent = IntPtr.Zero;

                IntPtr hNext = IntPtr.Zero;

                string sClassNameFilter = "#32770";

                for (int f_intStep = 1; f_intStep < 20000; f_intStep++)
                {
                    hNext = FindWindowEx(hParent, hNext, sClassNameFilter, IntPtr.Zero);

                    if (!hNext.Equals(IntPtr.Zero))
                    {
                        ShowWindow(hNext, 0);
                    }

                    System.Threading.Thread.Sleep(100);

                    if (File.Exists(filePath) == true)
                    {
                        break;
                    }
                }

                object wdDoNotSaveChanges = 0;

                docs.GetType().InvokeMember("Close", System.Reflection.BindingFlags.InvokeMethod, null, docs, new Object[] { 0, 0, 0 });

                wordType.InvokeMember("Quit", System.Reflection.BindingFlags.InvokeMethod, null, appword, new Object[] { 0, System.Reflection.Missing.Value, System.Reflection.Missing.Value });

                docs = null;
                doc = null;
                docs1 = null;
                appword = null;

                obj_printer_settings = null;

                //更改默认打印机
                SetDefaultPrinter(currentPrinterName.Trim());
                //通知更改
                SendNotifyMessage(HWND_BROADCAST, WM_WININICHANGE, 0, "windows");

            }
            catch (Exception e)
            {
                docs = null;
                doc = null;
                appword = null;

                obj_printer_settings = null;
                //throw e;
            }
        }

    }
----------------------------------------------------
itextsharp.dll 
Interop.ACAWebThumbLib.dll
Microsoft.Office.Interop.Excel.dll
引用以上dll文件

安装
gs811w32.exe
Bullzip 虚拟打印
Adobe Acrobat 7.0 Professional
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