raw.c File Reference

#include "precomp.h"

Include dependency graph for raw.c:

Go to the source code of this file.

Functions
PrintRawJob
Parameters pHandle Pointer to a WINPRINT_HANDLE structure containing information about this job. pwszPrinterAndJob String in the format "Printer, Job N" that is passed to OpenPrinterW to read from the spooled print job. Returns An error code indicating success or failure.
DWORD	PrintRawJob (PWINPRINT_HANDLE pHandle, PWSTR pwszPrinterAndJob)

Function Documentation

PrintRawJob()

DWORD PrintRawJob	(	PWINPRINT_HANDLE	pHandle,
		PWSTR	pwszPrinterAndJob
	)

Definition at line 23 of file raw.c.

{
    // Use a read buffer of 256 KB size like Windows does.
    const DWORD cbReadBuffer = 262144;
 
    BOOL bStartedDoc = FALSE;
    DOC_INFO_1W DocInfo1;
    DWORD cbRead;
    DWORD cbWritten;
    DWORD dwErrorCode;
    HANDLE hPrintJob;
    HANDLE hPrintMonitor = NULL;
    PBYTE pBuffer = NULL;
 
    // Open the spooled job to read from it.
    if (!OpenPrinterW(pwszPrinterAndJob, &hPrintJob, NULL))
    {
        dwErrorCode = GetLastError();
        ERR("OpenPrinterW failed for \"%S\" with error %lu!\n", pwszPrinterAndJob, GetLastError());
        goto Cleanup;
    }
 
    // Open a Print Monitor handle to write to it.
    if (!OpenPrinterW(pHandle->pwszPrinterPort, &hPrintMonitor, NULL))
    {
        dwErrorCode = GetLastError();
        ERR("OpenPrinterW failed for \"%S\" with error %lu!\n", pHandle->pwszPrinterPort, GetLastError());
        goto Cleanup;
    }
 
    // Fill the Document Information.
    DocInfo1.pDatatype = pHandle->pwszDatatype;
    DocInfo1.pDocName = pHandle->pwszDocumentName;
    DocInfo1.pOutputFile = pHandle->pwszOutputFile;
 
    // Tell the Print Monitor that we're starting a new document.
    if (!StartDocPrinterW(hPrintMonitor, 1, (PBYTE)&DocInfo1))
    {
        dwErrorCode = GetLastError();
        ERR("StartDocPrinterW failed with error %lu!\n", GetLastError());
        goto Cleanup;
    }
 
    bStartedDoc = TRUE;
 
    // Allocate a read buffer on the heap. This would easily exceed the stack size.
    pBuffer = DllAllocSplMem(cbReadBuffer);
    if (!pBuffer)
    {
        dwErrorCode = ERROR_NOT_ENOUGH_MEMORY;
        ERR("DllAllocSplMem failed with error %lu!\n", GetLastError());
        goto Cleanup;
    }
 
    // Loop as long as data is available.
    while (ReadPrinter(hPrintJob, pBuffer, cbReadBuffer, &cbRead) && cbRead)
    {
        // Write it to the Print Monitor.
        WritePrinter(hPrintMonitor, pBuffer, cbRead, &cbWritten);
    }
 
    dwErrorCode = ERROR_SUCCESS;
 
Cleanup:
    if (pBuffer)
        DllFreeSplMem(pBuffer);
 
    if (bStartedDoc)
        EndDocPrinter(hPrintMonitor);
 
    if (hPrintMonitor)
        ClosePrinter(hPrintMonitor);
 
    if (hPrintJob)
        ClosePrinter(hPrintJob);
 
    return dwErrorCode;
}

Referenced by PrintDocumentOnPrintProcessor().