本文共 14278 字，大约阅读时间需要 47 分钟。

长江支流说的办法保留太多了,结果不行,很多类都是他在程序集里自定义的,源码又没公开

不过还是要感谢他的提示

   今天和小陈搞了一天,他在国外的论坛上看到了一篇文章得到了启示,最后我们在凌晨3点终于把自定义纸张的代码给写出来了,看来必须用API,微软的.NET对打印的支持太菜了

现公开我们工作室实现此功能的部分代码

using System;

using System.Text;using System.Runtime.InteropServices;using System.Security;using System.ComponentModel;using System.Drawing.Printing;

namespace MCCustomPrintForm

{  /// <summary> /// 成都微创工作室（电子科技大学微创工作室） /// Tell 028-82853098 /// Email   ,  /// 打印机纸张的真正自定义部分代码 /// 2006-1-2 /// </summary> public class MCCustomPrintForm {   // Make a static class  private MCCustomPrintForm()  {   }   [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Auto)]   internal struct structPrinterDefaults  {    [MarshalAs(UnmanagedType.LPTStr)] public String pDatatype;   public IntPtr pDevMode;   [MarshalAs(UnmanagedType.I4)] public int DesiredAccess;  };

  [DllImport("winspool.Drv", EntryPoint="OpenPrinter", SetLastError=true,

    CharSet=CharSet.Unicode, ExactSpelling=false,CallingConvention=CallingConvention.StdCall),  SuppressUnmanagedCodeSecurityAttribute()]  internal static extern bool OpenPrinter([MarshalAs(UnmanagedType.LPTStr)]   string printerName,   out IntPtr phPrinter,   ref structPrinterDefaults pd);   [DllImport("winspool.Drv", EntryPoint="ClosePrinter", SetLastError=true,    CharSet=CharSet.Unicode, ExactSpelling=false,    CallingConvention=CallingConvention.StdCall),SuppressUnmanagedCodeSecurityAttribute()]  internal static extern bool ClosePrinter(IntPtr phPrinter);

  [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Auto)]

   internal struct structSize  {    public Int32 width;   public Int32 height;  }

  [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Auto)]

   internal struct structRect  {    public Int32 left;   public Int32 top;   public Int32 right;   public Int32 bottom;  }

  [StructLayout(LayoutKind.Explicit, CharSet=CharSet.Unicode)]

   internal struct FormInfo1  {    [FieldOffset(0), MarshalAs(UnmanagedType.I4)] public uint Flags;   [FieldOffset(4), MarshalAs(UnmanagedType.LPWStr)] public String pName;   [FieldOffset(8)] public structSize Size;   [FieldOffset(16)] public structRect ImageableArea;  };

  [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Ansi/* changed from CharSet=CharSet.Auto */)]

   internal struct structDevMode  {    [MarshalAs(UnmanagedType.ByValTStr, SizeConst=32)] public String    dmDeviceName;   [MarshalAs(UnmanagedType.U2)] public short dmSpecVersion;   [MarshalAs(UnmanagedType.U2)] public short dmDriverVersion;   [MarshalAs(UnmanagedType.U2)] public short dmSize;   [MarshalAs(UnmanagedType.U2)] public short dmDriverExtra;   [MarshalAs(UnmanagedType.U4)] public int dmFields;   [MarshalAs(UnmanagedType.I2)] public short dmOrientation;   [MarshalAs(UnmanagedType.I2)] public short dmPaperSize;   [MarshalAs(UnmanagedType.I2)] public short dmPaperLength;   [MarshalAs(UnmanagedType.I2)] public short dmPaperWidth;   [MarshalAs(UnmanagedType.I2)] public short dmScale;   [MarshalAs(UnmanagedType.I2)] public short dmCopies;   [MarshalAs(UnmanagedType.I2)] public short dmDefaultSource;   [MarshalAs(UnmanagedType.I2)] public short dmPrintQuality;   [MarshalAs(UnmanagedType.I2)] public short dmColor;   [MarshalAs(UnmanagedType.I2)] public short dmDuplex;   [MarshalAs(UnmanagedType.I2)] public short dmYResolution;   [MarshalAs(UnmanagedType.I2)] public short dmTTOption;   [MarshalAs(UnmanagedType.I2)] public short dmCollate;   [MarshalAs(UnmanagedType.ByValTStr, SizeConst=32)] public String dmFormName;   [MarshalAs(UnmanagedType.U2)] public short dmLogPixels;   [MarshalAs(UnmanagedType.U4)] public int dmBitsPerPel;   [MarshalAs(UnmanagedType.U4)] public int dmPelsWidth;   [MarshalAs(UnmanagedType.U4)] public int dmPelsHeight;   [MarshalAs(UnmanagedType.U4)] public int dmNup;   [MarshalAs(UnmanagedType.U4)] public int dmDisplayFrequency;   [MarshalAs(UnmanagedType.U4)] public int dmICMMethod;   [MarshalAs(UnmanagedType.U4)] public int dmICMIntent;   [MarshalAs(UnmanagedType.U4)] public int dmMediaType;   [MarshalAs(UnmanagedType.U4)] public int dmDitherType;   [MarshalAs(UnmanagedType.U4)] public int dmReserved1;   [MarshalAs(UnmanagedType.U4)] public int dmReserved2;  }

      [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Auto)] 

         internal struct PRINTER_INFO_9       {          public IntPtr pDevMode;      }

  [DllImport("winspool.Drv", EntryPoint="AddFormW", SetLastError=true,

    CharSet=CharSet.Unicode, ExactSpelling=true,    CallingConvention=CallingConvention.StdCall), SuppressUnmanagedCodeSecurityAttribute()]  internal static extern bool AddForm(         IntPtr phPrinter,   [MarshalAs(UnmanagedType.I4)] int level,          ref FormInfo1 form);

/*    This method is not used

  [DllImport("winspool.Drv", EntryPoint="SetForm", SetLastError=true,    CharSet=CharSet.Unicode, ExactSpelling=false,    CallingConvention=CallingConvention.StdCall), SuppressUnmanagedCodeSecurityAttribute()]  internal static extern bool SetForm(IntPtr phPrinter, string paperName,   [MarshalAs(UnmanagedType.I4)] int level, ref FormInfo1 form);*/  [DllImport("winspool.Drv", EntryPoint="DeleteForm", SetLastError=true,    CharSet=CharSet.Unicode, ExactSpelling=false,CallingConvention=CallingConvention.StdCall),  SuppressUnmanagedCodeSecurityAttribute()]  internal static extern bool DeleteForm(         IntPtr phPrinter,   [MarshalAs(UnmanagedType.LPTStr)] string pName);

  [DllImport("kernel32.dll", EntryPoint="GetLastError", SetLastError=false,

    ExactSpelling=true, CallingConvention=CallingConvention.StdCall),  SuppressUnmanagedCodeSecurityAttribute()]  internal static extern Int32 GetLastError();

  [DllImport("GDI32.dll", EntryPoint="CreateDC", SetLastError=true,

    CharSet=CharSet.Unicode, ExactSpelling=false,    CallingConvention=CallingConvention.StdCall),  SuppressUnmanagedCodeSecurityAttribute()]  internal static extern IntPtr CreateDC([MarshalAs(UnmanagedType.LPTStr)]   string pDrive,   [MarshalAs(UnmanagedType.LPTStr)] string pName,   [MarshalAs(UnmanagedType.LPTStr)] string pOutput,   ref structDevMode pDevMode);

  [DllImport("GDI32.dll", EntryPoint="ResetDC", SetLastError=true,

    CharSet=CharSet.Unicode, ExactSpelling=false,    CallingConvention=CallingConvention.StdCall),  SuppressUnmanagedCodeSecurityAttribute()]  internal static extern IntPtr ResetDC(         IntPtr hDC,          ref structDevMode   pDevMode);

  [DllImport("GDI32.dll", EntryPoint="DeleteDC", SetLastError=true,

    CharSet=CharSet.Unicode, ExactSpelling=false,    CallingConvention=CallingConvention.StdCall),  SuppressUnmanagedCodeSecurityAttribute()]  internal static extern bool DeleteDC(IntPtr hDC);

      [DllImport("winspool.Drv", EntryPoint="SetPrinterA", SetLastError=true,

          CharSet=CharSet.Auto, ExactSpelling=true,          CallingConvention=CallingConvention.StdCall), SuppressUnmanagedCodeSecurityAttribute()]      internal static extern bool SetPrinter(         IntPtr hPrinter,         [MarshalAs(UnmanagedType.I4)] int level,          IntPtr pPrinter,          [MarshalAs(UnmanagedType.I4)] int command);

      /*

       LONG DocumentProperties(         HWND hWnd,               // handle to parent window          HANDLE hPrinter,         // handle to printer object         LPTSTR pDeviceName,      // device name         PDEVMODE pDevModeOutput, // modified device mode         PDEVMODE pDevModeInput,  // original device mode         DWORD fMode              // mode options         );       */      [DllImport("winspool.Drv", EntryPoint="DocumentPropertiesA", SetLastError=true,       ExactSpelling=true, CallingConvention=CallingConvention.StdCall)]       public static extern int DocumentProperties(         IntPtr hwnd,          IntPtr hPrinter,         [MarshalAs(UnmanagedType.LPStr)] string pDeviceName /* changed from String to string */,         IntPtr pDevModeOutput,          IntPtr pDevModeInput,          int fMode         );

      [DllImport("winspool.Drv", EntryPoint="GetPrinterA", SetLastError=true, 

      ExactSpelling=true, CallingConvention=CallingConvention.StdCall)]       public static extern bool GetPrinter(         IntPtr hPrinter,          int dwLevel /* changed type from Int32 */,         IntPtr pPrinter,         int dwBuf /* chagned from Int32*/,          out int dwNeeded /* changed from Int32*/         ); 

      // SendMessageTimeout tools

      [Flags] public enum SendMessageTimeoutFlags : uint      {          SMTO_NORMAL         = 0x0000,         SMTO_BLOCK          = 0x0001,         SMTO_ABORTIFHUNG    = 0x0002,         SMTO_NOTIMEOUTIFNOTHUNG = 0x0008      }      const int WM_SETTINGCHANGE = 0x001A;      const int HWND_BROADCAST = 0xffff;

      [DllImport("user32.dll", SetLastError=true, CharSet=CharSet.Auto)]

      public static extern IntPtr SendMessageTimeout(         IntPtr windowHandle,          uint Msg,          IntPtr wParam,          IntPtr lParam,          SendMessageTimeoutFlags flags,          uint timeout,          out IntPtr result         );      //打印纸张长宽设置      public static void AddMC80MmPaperSizeToDefaultPrinter()      {          AddCustomPaperSizeToDefaultPrinter("MC 80mm * Receipt Length", 80.1f, 4003.9f);      }

      public static void AddMC104MmPaperSizeToDefaultPrinter()

      {          AddCustomPaperSizeToDefaultPrinter("MC 104mm * Receipt Length", 104.1f, 4003.9f);      }

      /// <summary>

      /// Adds the printer form to the default printer      /// </summary>      /// <param name="paperName">Name of the printer form</param>      /// <param name="widthMm">Width given in millimeters</param>      /// <param name="heightMm">Height given in millimeters</param>      public static void AddCustomPaperSizeToDefaultPrinter(string paperName, float widthMm, float heightMm)      {          PrintDocument pd = new PrintDocument();         string sPrinterName = pd.PrinterSettings.PrinterName;         AddCustomPaperSize(sPrinterName, paperName, widthMm, heightMm);      }

      /// <summary>

      /// Add the printer form to a printer       /// </summary>      /// <param name="printerName">The printer name</param>      /// <param name="paperName">Name of the printer form</param>      /// <param name="widthMm">Width given in millimeters</param>      /// <param name="heightMm">Height given in millimeters</param>  public static void AddCustomPaperSize(string printerName, string paperName, float   widthMm, float heightMm)  {    if (PlatformID.Win32NT == Environment.OSVersion.Platform)   {     // The code to add a custom paper size is different for Windows NT then it is    // for previous versions of windows

    const int PRINTER_ACCESS_USE = 0x00000008;

    const int PRINTER_ACCESS_ADMINISTER = 0x00000004;    const int FORM_PRINTER =   0x00000002;       structPrinterDefaults defaults = new structPrinterDefaults();    defaults.pDatatype = null;    defaults.pDevMode = IntPtr.Zero;    defaults.DesiredAccess = PRINTER_ACCESS_ADMINISTER | PRINTER_ACCESS_USE;

    IntPtr hPrinter = IntPtr.Zero;

    // Open the printer.

    if (OpenPrinter(printerName, out hPrinter, ref defaults))    {      try     {                   // delete the form incase it already exists      DeleteForm(hPrinter, paperName);                  // create and initialize the FORM_INFO_1 structure      FormInfo1 formInfo = new FormInfo1();      formInfo.Flags = 0;      formInfo.pName = paperName;                  // all sizes in 1000ths of millimeters      formInfo.Size.width = (int)(widthMm * 1000.0);       formInfo.Size.height = (int)(heightMm * 1000.0);      formInfo.ImageableArea.left = 0;      formInfo.ImageableArea.right = formInfo.Size.width;      formInfo.ImageableArea.top = 0;      formInfo.ImageableArea.bottom = formInfo.Size.height;      if (!AddForm(hPrinter, 1, ref formInfo))      {        StringBuilder strBuilder = new StringBuilder();       strBuilder.AppendFormat("Failed to add the custom paper size {0} to the printer {1}, System error number: {2}",        paperName, printerName, GetLastError());       throw new ApplicationException(strBuilder.ToString());      }

                  // INIT

                  const int DM_OUT_BUFFER = 2;                  const int DM_IN_BUFFER = 8;                  structDevMode devMode = new structDevMode();                  IntPtr hPrinterInfo, hDummy;                  PRINTER_INFO_9 printerInfo;                  printerInfo.pDevMode = IntPtr.Zero;                  int iPrinterInfoSize, iDummyInt;

                  // GET THE SIZE OF THE DEV_MODE BUFFER                  int iDevModeSize = DocumentProperties(IntPtr.Zero, hPrinter, printerName, IntPtr.Zero, IntPtr.Zero, 0);

                  if(iDevModeSize < 0)

                     throw new ApplicationException("Cannot get the size of the DEVMODE structure.");

                  // ALLOCATE THE BUFFER

                  IntPtr hDevMode = Marshal.AllocCoTaskMem(iDevModeSize + 100);

                  // GET A POINTER TO THE DEV_MODE BUFFER 

                  int iRet = DocumentProperties(IntPtr.Zero, hPrinter, printerName, hDevMode, IntPtr.Zero, DM_OUT_BUFFER);

                  if(iRet < 0)

                     throw new ApplicationException("Cannot get the DEVMODE structure.");

                  // FILL THE DEV_MODE STRUCTURE

                  devMode = (structDevMode)Marshal.PtrToStructure(hDevMode, devMode.GetType());

                  // SET THE FORM NAME FIELDS TO INDICATE THAT THIS FIELD WILL BE MODIFIED

                  devMode.dmFields = 0x10000; // DM_FORMNAME                   // SET THE FORM NAME                  devMode.dmFormName = paperName; 

                  // PUT THE DEV_MODE STRUCTURE BACK INTO THE POINTER

                  Marshal.StructureToPtr(devMode, hDevMode, true);

                  // MERGE THE NEW CHAGES WITH THE OLD

                  iRet = DocumentProperties(IntPtr.Zero, hPrinter, printerName,                            printerInfo.pDevMode, printerInfo.pDevMode, DM_IN_BUFFER | DM_OUT_BUFFER);

                  if(iRet < 0)

                     throw new ApplicationException("Unable to set the orientation setting for this printer.");

                  // GET THE PRINTER INFO SIZE

                  GetPrinter(hPrinter, 9, IntPtr.Zero, 0, out iPrinterInfoSize);                  if(iPrinterInfoSize == 0)                     throw new ApplicationException("GetPrinter failed. Couldn't get the # bytes needed for shared PRINTER_INFO_9 structure");

                  // ALLOCATE THE BUFFER

                  hPrinterInfo = Marshal.AllocCoTaskMem(iPrinterInfoSize + 100);

                  // GET A POINTER TO THE PRINTER INFO BUFFER

                  bool bSuccess = GetPrinter(hPrinter, 9, hPrinterInfo, iPrinterInfoSize, out iDummyInt);

                  if(!bSuccess)

                     throw new ApplicationException("GetPrinter failed. Couldn't get the shared PRINTER_INFO_9 structure");

                  // FILL THE PRINTER INFO STRUCTURE

                  printerInfo = (PRINTER_INFO_9)Marshal.PtrToStructure(hPrinterInfo, printerInfo.GetType());                  printerInfo.pDevMode = hDevMode;

                  // GET A POINTER TO THE PRINTER INFO STRUCTURE

                  Marshal.StructureToPtr(printerInfo, hPrinterInfo, true);

                  // SET THE PRINTER SETTINGS

                  bSuccess = SetPrinter(hPrinter, 9, hPrinterInfo, 0);

                  if(!bSuccess)

                     throw new Win32Exception(Marshal.GetLastWin32Error(), "SetPrinter() failed.  Couldn't set the printer settings");

                  // Tell all open programs that this change occurred.

                  SendMessageTimeout(                     new IntPtr(HWND_BROADCAST),                      WM_SETTINGCHANGE,                      IntPtr.Zero,                      IntPtr.Zero,                      MCCustomPrintForm.SendMessageTimeoutFlags.SMTO_NORMAL,                      1000,                      out hDummy);     }     finally     {       ClosePrinter(hPrinter);     }    }    else    {      StringBuilder strBuilder = new StringBuilder();     strBuilder.AppendFormat("Failed to open the {0} printer, System error number: {1}",      printerName, GetLastError());     throw new ApplicationException(strBuilder.ToString());    }   }   else   {     structDevMode pDevMode = new structDevMode();    IntPtr hDC = CreateDC(null, printerName, null, ref pDevMode);    if (hDC != IntPtr.Zero)    {      const long DM_PAPERSIZE = 0x00000002L;     const long DM_PAPERLENGTH = 0x00000004L;     const long DM_PAPERWIDTH = 0x00000008L;     pDevMode.dmFields = (int)(DM_PAPERSIZE | DM_PAPERWIDTH | DM_PAPERLENGTH);     pDevMode.dmPaperSize = 256;     pDevMode.dmPaperWidth = (short)(widthMm * 1000.0);     pDevMode.dmPaperLength = (short)(heightMm * 1000.0);     ResetDC(hDC, ref pDevMode);     DeleteDC(hDC);    }   }  } }}

 

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