你目前正处于脱机状态,正在等待 Internet 重新连接

如何检索并设置在 Windows 中的默认打印机

针对 Windows XP 的支持已终止

Microsoft 已于 2014 年 4 月 8 日终止了针对 Windows XP 的支持。该更改已影响到您的软件更新和安全选项。 了解这一措施对于您的含义以及如何继续保持受保护状态。

注意:这篇文章是由无人工介入的微软自动的机器翻译软件翻译完成。微软很高兴能同时提供给您由人工翻译的和由机器翻译的文章, 以使您能使用您的语言访问所有的知识库文章。然而由机器翻译的文章并不总是完美的。它可能存在词汇,语法或文法的问题,就像是一个外国人在说中文时总是可能犯这样的错误。虽然我们经常升级机器翻译软件以提高翻译质量,但是我们不保证机器翻译的正确度,也不对由于内容的误译或者客户对它的错误使用所引起的任何直接的, 或间接的可能的问题负责。

点击这里察看该文章的英文版: 246772
注意
本文适用于 Windows 2000。Windows 2000 支持的结束,到 2010 7 月 13Windows 2000 End-of-Support Solution Center 是进行规划迁移策略从 Windows 2000 的起始位置。有关详细信息,请参阅 Microsoft Support Lifecycle Policy
本文已归档。它按“原样”提供,并且不再更新。
概要
您可以在此检索或设置默认打印机使用的具体情况取决于您使用的 windows 版本的不同方法。
更多信息
不能 使用与 Windows NT 4.0 (和更早版本):
  • SetPrinter 或者 SetDefaultPrinter 设置默认打印机。
  • EnumPrinters 或者 GetDefaultPrinter 获取默认打印机。
可以 使用与 Windows NT 4.0:
  • GetProfileString 获取默认打印机。
  • 若要设置默认打印机 WriteProfileString
获取或设置的设备值包含以逗号分隔,如下所示的三个元素:
      printer name,driver name,port				
例如:
      My Printer,HPPCL5MS,lpt1:				
注意下列:
  • 您在使用此方法时必须指定一个有效的打印机,驱动程序和端口。如果您没有将 api 失败,并且可能会导致其他应用程序将打印机设置回以前有效的打印机或变得混乱。

    若要检索打印机名称、 驱动程序名称和所有的可用打印机的端口名,请使用 EnumPrinters API。
  • Windows NT 将映射到注册表的大多数.ini 文件引用。如此一来 GetProfileStringWriteProfileString 仍然起作用就好像它们 16 位 Windows (Windows 和工作组的 Windows) 下运行。
  • 设置默认打印机使用 GetPrinterGetDefaultPrinter,或 WriteProfileString 后,通过广播 WM_SETTINGCHANGE 消息来通知更改的所有其他打开的程序。只有处理此消息的程序才识别该更改。

    WM_SETTINGCHANGE 和 WM_WININICHANGE 相同 ; 对于 Win32 程序使用 WM_SETTINGCHANGE。

示例代码

下面的代码示例演示如何检索默认打印机 (DPGetDefaultPrinter) 并设置默认打印机 (DPSetDefaultPrinter)。
// You are explicitly linking to GetDefaultPrinter because linking // implicitly on Windows 95/98 or NT4 results in a runtime error.// This block specifies which text version you explicitly link to.#ifdef UNICODE  #define GETDEFAULTPRINTER "GetDefaultPrinterW"#else  #define GETDEFAULTPRINTER "GetDefaultPrinterA"#endif// Size of internal buffer used to hold "printername,drivername,portname"// string. You may have to increase this for huge strings.#define MAXBUFFERSIZE 250/*----------------------------------------------------------------*/ /* DPGetDefaultPrinter                                            */ /*                                                                */ /* Parameters:                                                    */ /*   pPrinterName: Buffer alloc'd by caller to hold printer name. */ /*   pdwBufferSize: On input, ptr to size of pPrinterName.        */ /*          On output, min required size of pPrinterName.         */ /*                                                                */ /* NOTE: You must include enough space for the NULL terminator!   */ /*                                                                */ /* Returns: TRUE for success, FALSE for failure.                  */ /*----------------------------------------------------------------*/ BOOL DPGetDefaultPrinter(LPTSTR pPrinterName, LPDWORD pdwBufferSize){  BOOL bFlag;  OSVERSIONINFO osv;  TCHAR cBuffer[MAXBUFFERSIZE];  PRINTER_INFO_2 *ppi2 = NULL;  DWORD dwNeeded = 0;  DWORD dwReturned = 0;  HMODULE hWinSpool = NULL;  PROC fnGetDefaultPrinter = NULL;    // What version of Windows are you running?  osv.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);  GetVersionEx(&osv);    // If Windows 95 or 98, use EnumPrinters.  if (osv.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS)  {    // The first EnumPrinters() tells you how big our buffer must    // be to hold ALL of PRINTER_INFO_2. Note that this will    // typically return FALSE. This only means that the buffer (the 4th    // parameter) was not filled in. You do not want it filled in here.    SetLastError(0);    bFlag = EnumPrinters(PRINTER_ENUM_DEFAULT, NULL, 2, NULL, 0, &dwNeeded, &dwReturned);    {      if ((GetLastError() != ERROR_INSUFFICIENT_BUFFER) || (dwNeeded == 0))        return FALSE;    }        // Allocate enough space for PRINTER_INFO_2.    ppi2 = (PRINTER_INFO_2 *)GlobalAlloc(GPTR, dwNeeded);    if (!ppi2)      return FALSE;        // The second EnumPrinters() will fill in all the current information.    bFlag = EnumPrinters(PRINTER_ENUM_DEFAULT, NULL, 2, (LPBYTE)ppi2, dwNeeded, &dwNeeded, &dwReturned);    if (!bFlag)    {      GlobalFree(ppi2);      return FALSE;    }        // If specified buffer is too small, set required size and fail.    if ((DWORD)lstrlen(ppi2->pPrinterName) >= *pdwBufferSize)    {      *pdwBufferSize = (DWORD)lstrlen(ppi2->pPrinterName) + 1;      GlobalFree(ppi2);      return FALSE;    }        // Copy printer name into passed-in buffer.    lstrcpy(pPrinterName, ppi2->pPrinterName);        // Set buffer size parameter to minimum required buffer size.    *pdwBufferSize = (DWORD)lstrlen(ppi2->pPrinterName) + 1;  }    // If Windows NT, use the GetDefaultPrinter API for Windows 2000,  // or GetProfileString for version 4.0 and earlier.  else if (osv.dwPlatformId == VER_PLATFORM_WIN32_NT)  {    if (osv.dwMajorVersion >= 5) // Windows 2000 or later (use explicit call)    {      hWinSpool = LoadLibrary("winspool.drv");      if (!hWinSpool)        return FALSE;      fnGetDefaultPrinter = GetProcAddress(hWinSpool, GETDEFAULTPRINTER);      if (!fnGetDefaultPrinter)      {        FreeLibrary(hWinSpool);        return FALSE;      }      bFlag = fnGetDefaultPrinter(pPrinterName, pdwBufferSize);        FreeLibrary(hWinSpool);      if (!bFlag)        return FALSE;    }        else // NT4.0 or earlier    {      // Retrieve the default string from Win.ini (the registry).      // String will be in form "printername,drivername,portname".      if (GetProfileString("windows", "device", ",,,", cBuffer, MAXBUFFERSIZE) <= 0)        return FALSE;            // Printer name precedes first "," character.      strtok(cBuffer, ",");            // If specified buffer is too small, set required size and fail.      if ((DWORD)lstrlen(cBuffer) >= *pdwBufferSize)      {        *pdwBufferSize = (DWORD)lstrlen(cBuffer) + 1;        return FALSE;      }            // Copy printer name into passed-in buffer.      lstrcpy(pPrinterName, cBuffer);            // Set buffer size parameter to minimum required buffer size.      *pdwBufferSize = (DWORD)lstrlen(cBuffer) + 1;    }  }    // Clean up.  if (ppi2)    GlobalFree(ppi2);    return TRUE;}#undef MAXBUFFERSIZE#undef GETDEFAULTPRINTER// You are explicitly linking to SetDefaultPrinter because implicitly// linking on Windows 95/98 or NT4 results in a runtime error.// This block specifies which text version you explicitly link to.#ifdef UNICODE  #define SETDEFAULTPRINTER "SetDefaultPrinterW"#else  #define SETDEFAULTPRINTER "SetDefaultPrinterA"#endif/*-----------------------------------------------------------------*/ /* DPSetDefaultPrinter                                             */ /*                                                                 */ /* Parameters:                                                     */ /*   pPrinterName: Valid name of existing printer to make default. */ /*                                                                 */ /* Returns: TRUE for success, FALSE for failure.                   */ /*-----------------------------------------------------------------*/ BOOL DPSetDefaultPrinter(LPTSTR pPrinterName){  BOOL bFlag;  OSVERSIONINFO osv;  DWORD dwNeeded = 0;  HANDLE hPrinter = NULL;  PRINTER_INFO_2 *ppi2 = NULL;  LPTSTR pBuffer = NULL;  LONG lResult;  HMODULE hWinSpool = NULL;  PROC fnSetDefaultPrinter = NULL;    // What version of Windows are you running?  osv.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);  GetVersionEx(&osv);    if (!pPrinterName)    return FALSE;    // If Windows 95 or 98, use SetPrinter.  if (osv.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS)  {    // Open this printer so you can get information about it.    bFlag = OpenPrinter(pPrinterName, &hPrinter, NULL);    if (!bFlag || !hPrinter)      return FALSE;        // The first GetPrinter() tells you how big our buffer must    // be to hold ALL of PRINTER_INFO_2. Note that this will    // typically return FALSE. This only means that the buffer (the 3rd    // parameter) was not filled in. You do not want it filled in here.    SetLastError(0);    bFlag = GetPrinter(hPrinter, 2, 0, 0, &dwNeeded);    if (!bFlag)    {      if ((GetLastError() != ERROR_INSUFFICIENT_BUFFER) || (dwNeeded == 0))      {        ClosePrinter(hPrinter);        return FALSE;      }    }        // Allocate enough space for PRINTER_INFO_2.    ppi2 = (PRINTER_INFO_2 *)GlobalAlloc(GPTR, dwNeeded);    if (!ppi2)    {      ClosePrinter(hPrinter);      return FALSE;    }        // The second GetPrinter() will fill in all the current information    // so that all you have to do is modify what you are interested in.    bFlag = GetPrinter(hPrinter, 2, (LPBYTE)ppi2, dwNeeded, &dwNeeded);    if (!bFlag)    {      ClosePrinter(hPrinter);      GlobalFree(ppi2);      return FALSE;    }        // Set default printer attribute for this printer.    ppi2->Attributes |= PRINTER_ATTRIBUTE_DEFAULT;    bFlag = SetPrinter(hPrinter, 2, (LPBYTE)ppi2, 0);    if (!bFlag)    {      ClosePrinter(hPrinter);      GlobalFree(ppi2);      return FALSE;    }        // Tell all open programs that this change occurred.     // Allow each program 1 second to handle this message.    lResult = SendMessageTimeout(HWND_BROADCAST, WM_SETTINGCHANGE, 0L,      (LPARAM)(LPCTSTR)"windows", SMTO_NORMAL, 1000, NULL);  }    // If Windows NT, use the SetDefaultPrinter API for Windows 2000,  // or WriteProfileString for version 4.0 and earlier.  else if (osv.dwPlatformId == VER_PLATFORM_WIN32_NT)  {    if (osv.dwMajorVersion >= 5) // Windows 2000 or later (use explicit call)    {      hWinSpool = LoadLibrary("winspool.drv");      if (!hWinSpool)        return FALSE;      fnSetDefaultPrinter = GetProcAddress(hWinSpool, SETDEFAULTPRINTER);      if (!fnSetDefaultPrinter)      {        FreeLibrary(hWinSpool);        return FALSE;      }      bFlag = fnSetDefaultPrinter(pPrinterName);      FreeLibrary(hWinSpool);      if (!bFlag)        return FALSE;    }    else // NT4.0 or earlier    {      // Open this printer so you can get information about it.      bFlag = OpenPrinter(pPrinterName, &hPrinter, NULL);      if (!bFlag || !hPrinter)        return FALSE;            // The first GetPrinter() tells you how big our buffer must      // be to hold ALL of PRINTER_INFO_2. Note that this will      // typically return FALSE. This only means that the buffer (the 3rd      // parameter) was not filled in. You do not want it filled in here.      SetLastError(0);      bFlag = GetPrinter(hPrinter, 2, 0, 0, &dwNeeded);      if (!bFlag)      {        if ((GetLastError() != ERROR_INSUFFICIENT_BUFFER) || (dwNeeded == 0))        {          ClosePrinter(hPrinter);          return FALSE;        }      }            // Allocate enough space for PRINTER_INFO_2.      ppi2 = (PRINTER_INFO_2 *)GlobalAlloc(GPTR, dwNeeded);      if (!ppi2)      {        ClosePrinter(hPrinter);        return FALSE;      }            // The second GetPrinter() fills in all the current<BR/>      // information.      bFlag = GetPrinter(hPrinter, 2, (LPBYTE)ppi2, dwNeeded, &dwNeeded);      if ((!bFlag) || (!ppi2->pDriverName) || (!ppi2->pPortName))      {        ClosePrinter(hPrinter);        GlobalFree(ppi2);        return FALSE;      }            // Allocate buffer big enough for concatenated string.      // String will be in form "printername,drivername,portname".      pBuffer = (LPTSTR)GlobalAlloc(GPTR,        lstrlen(pPrinterName) +        lstrlen(ppi2->pDriverName) +        lstrlen(ppi2->pPortName) + 3);      if (!pBuffer)      {        ClosePrinter(hPrinter);        GlobalFree(ppi2);        return FALSE;      }            // Build string in form "printername,drivername,portname".      lstrcpy(pBuffer, pPrinterName);  lstrcat(pBuffer, ",");      lstrcat(pBuffer, ppi2->pDriverName);  lstrcat(pBuffer, ",");      lstrcat(pBuffer, ppi2->pPortName);            // Set the default printer in Win.ini and registry.      bFlag = WriteProfileString("windows", "device", pBuffer);      if (!bFlag)      {        ClosePrinter(hPrinter);        GlobalFree(ppi2);        GlobalFree(pBuffer);        return FALSE;      }    }        // Tell all open programs that this change occurred.     // Allow each app 1 second to handle this message.    lResult = SendMessageTimeout(HWND_BROADCAST, WM_SETTINGCHANGE, 0L, 0L,      SMTO_NORMAL, 1000, NULL);  }    // Clean up.  if (hPrinter)    ClosePrinter(hPrinter);  if (ppi2)    GlobalFree(ppi2);  if (pBuffer)    GlobalFree(pBuffer);    return TRUE;}#undef SETDEFAULTPRINTER				
代码出现在某些情况下不能运行:
  • 如果您留出 SendMessageTimeout 呼叫,其他程序不认识到更改,直到您重新启动该程序。
  • 如果不同的 32 位程序不处理 WM_SETTINGCHANGE 消息,其他程序不识别的默认打印机已被更改。您必须退出并重新启动来强制它识别更改程序。
  • MAXBUFFERSIZE 是太小,无法容纳以下字符串:
    printername,portname,drivername					
  • 您在使用该 WriteProfileString API 从该示例代码 (它必须仅对 Windows NT 4.0 和早期版本中使用) 时请记住您检索传递给 WriteProfileString 通过使用 32 位 API GetPrinter 端口名称。

    尽管此端口的名称是有效的 16 位程序无法读取它,并可能会遇到问题。如果您使用此方法与 Windows NT (4.0 以及更早版本),并且 16 位程序必须了解新的端口名必须使用 16 位别名的端口名 (NE0x,其中 x 是一个数字)。您可以在注册表中找到之间 32-位端口的名称和其 16 位别名映射。
参考
有关更多的信息请单击下面文章编号,以查看 Microsoft 知识库中相应的文章:
266767HOWTO: 设置的打印机是系统默认打印机
140560HOWTO: 设置默认打印机以编程方式在 Windows 95、 Windows 98 或 Windows Me

警告:本文已自动翻译

属性

文章 ID:246772 - 上次审阅时间:12/05/2015 17:37:20 - 修订版本: 2.6

Microsoft Platform Software Development Kit-January 2000 Edition, Microsoft Windows XP Professional Edition, the operating system: Microsoft Windows XP 64-Bit Edition, Microsoft Windows 2000 Server

  • kbnosurvey kbarchive kbmt kbdswgdi2003swept kbgdi kbhowto kbprint KB246772 KbMtzh
反馈