打印自定义纸张大小
不過還是要感謝他的提示
???今天和小陳搞了一天,他在國外的論壇上看到了一篇文章得到了啟示,最后我們在凌晨3點終于把自定義紙張的代碼給寫出來了,看來必須用API,微軟的.NET對打印的支持太菜了
現公開我們工作室實現此功能的部分代碼
using?System;
using?System.Text;
using?System.Runtime.InteropServices;
using?System.Security;
using?System.ComponentModel;
using?System.Drawing.Printing;
namespace?MCCustomPrintForm
{
?///?<summary>
?///?成都微創工作室（電子科技大學微創工作室）
?///?Tell?028-82853098
?///?Email?zyspipi@163.com??,?you680@gmail.com
?///?打印機紙張的真正自定義部分代碼
?///?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
?????????);
??????//打印紙張長寬設置
??????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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