打印自定义纸张大小

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 zyspipi@163.com  , you680@gmail.com  /// 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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