增加processor的详细方法

最新推荐文章于 2025-09-11 02:44:03 发布

原创最新推荐文章于 2025-09-11 02:44:03 发布 · 1.4k 阅读

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文章标签：

#null #access #buffer #events #function #dll

本文介绍如何安装打印处理器，包括将processor.dll文件放置于正确路径、修改INF文件以包含必要的配置信息，以及通过DrvPrinterEvent和DrvUpgradePrinter函数确保打印机正确关联处理器。

网络提供的安装processor的说明，只要搜索关键字： Installing a Print Processor

在安装processor时，需要注意

首先，将具体的processor.dll拷贝到对应的processor目录

64位为 C:/Windows/System32/spool/prtprocs/x64

32位为 C:/Windows/System32/spool/prtprocs/x32

然后，修改INF文件，增加如下字节：

[Model]

%str% = MPDATA02,USBPRINT/....

[Model.NTx86]

%str% = MPDATA02,USBPRINT/....

[Model.NTamd64]

%str% = MPDATA02,USBPRINT/....

[MPDATA02.NTx86]

CopyFiles = DRIVER_FILES, PRTPROCS

DataSection = DATA_NT

DriverVer = 12/22/2010,5.1.2.0

[MPDATA02.NTamd64]

CopyFiles = DRIVER_FILES, PRTPROCS

DataSection = DATA_NT

DriverVer = 12/22/2010,5.1.2.0

[DATA_NT]

DriverFile = ....

DataFile =....

ConfigFile = .....

HelpFile =....

LanguageMonitor = MONITOR NAME, MONITOR.DLL

PrintProcessor = Processor name ,processor.dll

[PRTPROCS]

pt2000pro.dll

再然后，需要考虑的一个重要问题是打印机与processor的对应上，对应的函数如下：

BOOL

DrvPrinterEvent(

LPWSTR pPrinterName,

INT Event,

DWORD Flags,

LPARAM lParam

)

{

PRINTER_DEFAULTS PrinterDef = {NULL, NULL, PRINTER_ALL_ACCESS};

HANDLE hPrinter;

LPPRINTER_INFO_2 pInfo = NULL;

DWORD cbNeeded;

TCHAR gszPrintProc[] = TEXT("<Print processor name>");

BOOL bRet = TRUE;

switch (Event)

{

case PRINTER_EVENT_INITIALIZE:

if (OpenPrinter(pPrinterName, &hPrinter, &PrinterDef))

{

if ( !GetPrinter( hPrinter, 2, (LPBYTE) pInfo, 0, &cbNeeded ) &&

(GetLastError() != ERROR_INSUFFICIENT_BUFFER) )

{

bRet = FALSE;

}

if (bRet == TRUE)

{

pInfo = (LPPRINTER_INFO_2) LocalAlloc(LPTR, cbNeeded);

bRet = pInfo ? TRUE : FALSE;

}

if (bRet == TRUE)

{

if (GetPrinter(hPrinter, 2, (LPBYTE) pInfo, cbNeeded, &cbNeeded))

{

pInfo->pPrintProcessor = gszPrintProc;

SetPrinter(hPrinter, 2, (LPBYTE) pInfo, 0);

}

else

{

bRet = FALSE;

}

if (pInfo)

{

LocalFree(pInfo);

}

ClosePrinter(hPrinter);

}

else // OpenPrinter failed

{

bRet = FALSE;

}

break;

// cases for other events

default:

break;

} // end switch

return bRet;

}

BOOL

DrvUpgradePrinter(

DWORD Level,

LPBYTE pDriverUpgradeInfo

)

{

HANDLE hPrinter;

PRINTER_DEFAULTS PrinterDef = {NULL, NULL, PRINTER_ALL_ACCESS};

PDRIVER_UPGRADE_INFO_2 pDUI2;

LPPRINTER_INFO_2 pInfo = NULL;

DWORD cbNeeded;

TCHAR gszPrintProc[] = TEXT("<Print processor name>");

TCHAR gszPrintDriver[] = TEXT("<Printer driver name>");

BOOL bRet = TRUE;

if ((Level == 2) &&

(pDUI2 = (PDRIVER_UPGRADE_INFO_2)pDriverUpgradeInfo) &&

(OpenPrinter(pDUI2->pPrinterName, &hPrinter, &PrinterDef)))

{

if ( !GetPrinter( hPrinter, 2, (LPBYTE) pInfo, 0, &cbNeeded ) &&

(GetLastError() != ERROR_INSUFFICIENT_BUFFER) )

{

bRet = FALSE;

}

if (bRet == TRUE)

{

pInfo = (LPPRINTER_INFO_2) LocalAlloc(LPTR, cbNeeded);

bRet = pInfo ? TRUE : FALSE;

}

if (bRet == TRUE)

{

if (GetPrinter(hPrinter, 2, (LPBYTE) pInfo, cbNeeded, &cbNeeded))

{

// This function is called for every printer queue that uses a driver

// for which one or more files were updated. However, we only want to

// update the printer queue's "driver" by a particular driver.

if ( !lstrcmpi(pInfo->pDriverName, gszPrintDriver) )

{

pInfo->pPrintProcessor = gszPrintProc;

SetPrinter(hPrinter, 2, (LPBYTE) pInfo, 0);

}

else // GetPrinter

{

bRet = FALSE;

}

if (pInfo)

{

LocalFree(pInfo);

}

ClosePrinter(hPrinter);

}

else // Level != 2 or pDUI2 == NULL or OpenPrinter failed

{

bRet = FALSE;

}

return bRet;

}

对应成功后，就可以完成安装了。

另外，需要特别注意的问题是：在使用setup.exe程序进行安装时：

首先，将processor。dll 拷贝到对应的目录当中；

然后使用addprintprocessor函数，进行安装。使用时需要特别注意的是第三个参数，不是全路径，而只是processor.dll 就可以了。