mirror of
https://github.com/reactos/reactos.git
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100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/*
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* PROJECT: ReactOS Standard Print Processor
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* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
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* PURPOSE: Printing a job with RAW datatype
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* COPYRIGHT: Copyright 2015 Colin Finck (colin@reactos.org)
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*/
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#include "precomp.h"
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/**
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* @name PrintRawJob
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*
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* @param pHandle
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* Pointer to a WINPRINT_HANDLE structure containing information about this job.
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*
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* @param pwszPrinterAndJob
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* String in the format "Printer, Job N" that is passed to OpenPrinterW to read from the spooled print job.
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*
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* @return
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* An error code indicating success or failure.
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*/
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DWORD
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PrintRawJob(PWINPRINT_HANDLE pHandle, PWSTR pwszPrinterAndJob)
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{
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// Use a read buffer of 256 KB size like Windows does.
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const DWORD cbReadBuffer = 262144;
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BOOL bStartedDoc = FALSE;
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DOC_INFO_1W DocInfo1;
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DWORD cbRead;
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DWORD cbWritten;
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DWORD dwErrorCode;
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HANDLE hPrintJob;
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HANDLE hPrintMonitor = NULL;
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PBYTE pBuffer = NULL;
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// Open the spooled job to read from it.
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if (!OpenPrinterW(pwszPrinterAndJob, &hPrintJob, NULL))
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{
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dwErrorCode = GetLastError();
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ERR("OpenPrinterW failed for \"%S\" with error %lu!\n", pwszPrinterAndJob, GetLastError());
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goto Cleanup;
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}
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// Open a Print Monitor handle to write to it.
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if (!OpenPrinterW(pHandle->pwszPrinterPort, &hPrintMonitor, NULL))
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{
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dwErrorCode = GetLastError();
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ERR("OpenPrinterW failed for \"%S\" with error %lu!\n", pHandle->pwszPrinterPort, GetLastError());
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goto Cleanup;
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}
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// Fill the Document Information.
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DocInfo1.pDatatype = pHandle->pwszDatatype;
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DocInfo1.pDocName = pHandle->pwszDocumentName;
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DocInfo1.pOutputFile = pHandle->pwszOutputFile;
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// Tell the Print Monitor that we're starting a new document.
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if (!StartDocPrinterW(hPrintMonitor, 1, (PBYTE)&DocInfo1))
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{
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dwErrorCode = GetLastError();
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ERR("StartDocPrinterW failed with error %lu!\n", GetLastError());
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goto Cleanup;
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}
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bStartedDoc = TRUE;
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// Allocate a read buffer on the heap. This would easily exceed the stack size.
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pBuffer = DllAllocSplMem(cbReadBuffer);
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if (!pBuffer)
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{
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dwErrorCode = ERROR_NOT_ENOUGH_MEMORY;
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ERR("DllAllocSplMem failed with error %lu!\n", GetLastError());
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goto Cleanup;
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}
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// Loop as long as data is available.
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while (ReadPrinter(hPrintJob, pBuffer, cbReadBuffer, &cbRead) && cbRead)
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{
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// Write it to the Print Monitor.
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WritePrinter(hPrintMonitor, pBuffer, cbRead, &cbWritten);
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}
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dwErrorCode = ERROR_SUCCESS;
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Cleanup:
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if (pBuffer)
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DllFreeSplMem(pBuffer);
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if (bStartedDoc)
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EndDocPrinter(hPrintMonitor);
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if (hPrintMonitor)
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ClosePrinter(hPrintMonitor);
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if (hPrintJob)
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ClosePrinter(hPrintJob);
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return dwErrorCode;
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}
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