win32ss/printing/processors/winprint/raw.c

   1 /*
   2  * PROJECT:     ReactOS Standard Print Processor
   3  * LICENSE:     GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
   4  * PURPOSE:     Printing a job with RAW datatype
   5  * COPYRIGHT:   Copyright 2015 Colin Finck (colin@reactos.org)
   6  */
   7
   8 #include "precomp.h"
   9
  10 /**
  11  * @name PrintRawJob
  12  *
  13  * @param pHandle
  14  * Pointer to a WINPRINT_HANDLE structure containing information about this job.
  15  *
  16  * @param pwszPrinterAndJob
  17  * String in the format "Printer, Job N" that is passed to OpenPrinterW to read from the spooled print job.
  18  *
  19  * @return
  20  * An error code indicating success or failure.
  21  */
  22 DWORD
  23 PrintRawJob(PWINPRINT_HANDLE pHandle, PWSTR pwszPrinterAndJob)
  24 {
  25     // Use a read buffer of 256 KB size like Windows does.
  26     const DWORD cbReadBuffer = 262144;
  27
  28     BOOL bStartedDoc = FALSE;
  29     DOC_INFO_1W DocInfo1;
  30     DWORD cbRead;
  31     DWORD cbWritten;
  32     DWORD dwErrorCode;
  33     HANDLE hPrintJob;
  34     HANDLE hPrintMonitor = NULL;
  35     PBYTE pBuffer = NULL;
  36
  37     // Open the spooled job to read from it.
  38     if (!OpenPrinterW(pwszPrinterAndJob, &hPrintJob, NULL))
  39     {
  40         dwErrorCode = GetLastError();
  41         ERR("OpenPrinterW failed for \"%S\" with error %lu!\n", pwszPrinterAndJob, GetLastError());
  42         goto Cleanup;
  43     }
  44
  45     // Open a Print Monitor handle to write to it.
  46     if (!OpenPrinterW(pHandle->pwszPrinterPort, &hPrintMonitor, NULL))
  47     {
  48         dwErrorCode = GetLastError();
  49         ERR("OpenPrinterW failed for \"%S\" with error %lu!\n", pHandle->pwszPrinterPort, GetLastError());
  50         goto Cleanup;
  51     }
  52
  53     // Fill the Document Information.
  54     DocInfo1.pDatatype = pHandle->pwszDatatype;
  55     DocInfo1.pDocName = pHandle->pwszDocumentName;
  56     DocInfo1.pOutputFile = pHandle->pwszOutputFile;
  57
  58     // Tell the Print Monitor that we're starting a new document.
  59     if (!StartDocPrinterW(hPrintMonitor, 1, (PBYTE)&DocInfo1))
  60     {
  61         dwErrorCode = GetLastError();
  62         ERR("StartDocPrinterW failed with error %lu!\n", GetLastError());
  63         goto Cleanup;
  64     }
  65
  66     bStartedDoc = TRUE;
  67
  68     // Allocate a read buffer on the heap. This would easily exceed the stack size.
  69     pBuffer = DllAllocSplMem(cbReadBuffer);
  70     if (!pBuffer)
  71     {
  72         dwErrorCode = ERROR_NOT_ENOUGH_MEMORY;
  73         ERR("DllAllocSplMem failed with error %lu!\n", GetLastError());
  74         goto Cleanup;
  75     }
  76
  77     // Loop as long as data is available.
  78     while (ReadPrinter(hPrintJob, pBuffer, cbReadBuffer, &cbRead) && cbRead)
  79     {
  80         // Write it to the Print Monitor.
  81         WritePrinter(hPrintMonitor, pBuffer, cbRead, &cbWritten);
  82     }
  83
  84     dwErrorCode = ERROR_SUCCESS;
  85
  86 Cleanup:
  87     if (pBuffer)
  88         DllFreeSplMem(pBuffer);
  89
  90     if (bStartedDoc)
  91         EndDocPrinter(hPrintMonitor);
  92
  93     if (hPrintMonitor)
  94         ClosePrinter(hPrintMonitor);
  95
  96     if (hPrintJob)
  97         ClosePrinter(hPrintJob);
  98
  99     return dwErrorCode;
 100 }