DWORD
_RpcReadPrinter(WINSPOOL_PRINTER_HANDLE hPrinter, BYTE* pBuf, DWORD cbBuf, DWORD* pcNoBytesRead)
{
DWORD dwErrorCode;
dwErrorCode = RpcImpersonateClient(NULL);
if (dwErrorCode != ERROR_SUCCESS)
{
ERR("RpcImpersonateClient failed with error %lu!\n", dwErrorCode);
return dwErrorCode;
}
if (!ReadPrinter(hPrinter, pBuf, cbBuf, pcNoBytesRead))
dwErrorCode = GetLastError();
RpcRevertToSelf();
return dwErrorCode;
}
BOOL
PrintRawJob(
IN PPRINTPROCESSORDATA pData,
_In_ IN LPWSTR pPrinterName)
{
DOC_INFO_1 DocInfo;
DWORD Copies;
DWORD NoRead, NoWritten;
BOOL rc;
HANDLE hPrinter;
BYTE *ReadBuffer = NULL;
BOOL bRet = FALSE;
BOOL bStartDoc = FALSE;
DocInfo.pDocName = pData->pDocument; /* Document name */
DocInfo.pOutputFile = pData->pOutputFile; /* Output file */
DocInfo.pDatatype = pData->pDatatype; /* Document data type */
/** Let the printer know we are starting a new document **/
if (!StartDocPrinter(pData->hPrinter, 1, (LPBYTE)&DocInfo)) {
goto Done;
}
bStartDoc = TRUE;
/** Allocate the read buffer, dynamically allocated to conserve stack space **/
ReadBuffer = (BYTE *)AllocSplMem(READ_BUFFER_SIZE);
if (!ReadBuffer) {
goto Done;
}
/** Print the data pData->Copies times **/
Copies = pData->Copies;
while (Copies--) {
/**
Open the printer. If it fails, return. This also sets up the
pointer for the ReadPrinter calls.
**/
if (!OpenPrinter(pPrinterName, &hPrinter, NULL)) {
goto Done;
}
/**
Loop, getting data and sending it to the printer. This also
takes care of pausing and cancelling print jobs by checking
the processor's status flags while printing.
**/
while (
((rc = ReadPrinter(hPrinter, ReadBuffer, READ_BUFFER_SIZE, &NoRead)) != 0) &&
NoRead
) {
/** If the print processor is paused, wait for it to be resumed **/
if (pData->fsStatus & PRINTPROCESSOR_PAUSED) {
WaitForSingleObject(pData->semPaused, INFINITE);
}
/** If the job has been aborted, don't write anymore **/
if (pData->fsStatus & PRINTPROCESSOR_ABORTED) {
break;
}
/** Write the data to the printer **/
WritePrinter(pData->hPrinter, ReadBuffer, NoRead, &NoWritten);
}
/**
Close the printer - we open/close the printer for each
copy so the data pointer will rewind.
**/
ClosePrinter(hPrinter);
} /* While copies to print */
bRet = TRUE;
Done:
/** Close the buffer we allocated **/
if (ReadBuffer) {
FreeSplMem(ReadBuffer);
}
/** Let the printer know that we are done printing **/
if (bStartDoc) {
EndDocPrinter(pData->hPrinter);
}
return bRet;
}
/*++
*******************************************************************
P r i n t T e x t J o b
Routine Description:
Prints a text data job.
Arguments:
pData => Data structure for this job
pDocumentName => Name of this document
Return Value:
TRUE if successful
FALSE if failed - GetLastError() will return reason.
*******************************************************************
--*/
BOOL
PrintTextJob(
IN PPRINTPROCESSORDATA pData,
__in IN LPWSTR pDocumentName)
{
DOCINFO DocInfo;
LOGFONT LogFont;
CHARSETINFO CharSetInfo;
HFONT hOldFont, hFont = NULL;
DWORD Copies;
BOOL rc;
DWORD NoRead;
DWORD CurrentLine;
DWORD CurrentCol;
HANDLE hPrinter = NULL;
BYTE *ReadBufferStart = NULL;
PBYTE pLineBuffer = NULL;
PBYTE pReadBuffer = NULL;
PBYTE pReadBufferEnd = NULL;
ULONG CharHeight, CharWidth, CharsPerLine, LinesPerPage;
ULONG PageWidth, PageHeight;
ULONG Length, TabBase;
BOOL ReadAll;
TEXTMETRIC tm;
DWORD fdwFlags;
DWORD Encoding;
DWORD SplitSize;
BOOL ReturnValue = FALSE;
BOOL bAbortDoc = FALSE;
DWORD dwNeeded;
DWORD dwNoTranslate = 0;
DWORD dwNoTranslateCR = 0;
DWORD dwTransparent = 0;
INT iBkMode = OPAQUE;
DocInfo.lpszDocName = pData->pDocument; /* Document name */
DocInfo.lpszOutput = NULL; /* Output file */
DocInfo.lpszDatatype = NULL; /* Datatype */
DocInfo.cbSize = sizeof(DOCINFO); /* Size of the structure */
//
// Go figure out the size of the form on the printer. We do this
// by calling GetTextMetrics, which gives us the font size of the
// printer font, then getting the form size and calculating the
// number of characters that will fit. In other cases we treat it as ANSI text.
// Currently the codepage context is fixed to the system default codepage.
//
Encoding = GetACP();
//
// Create FIXED PITCH font and select
//
hOldFont = 0;
ZeroMemory(&CharSetInfo, sizeof(CHARSETINFO));
if (TranslateCharsetInfo((PDWORD)UIntToPtr(Encoding), &CharSetInfo, TCI_SRCCODEPAGE))
{
ZeroMemory(&LogFont, sizeof(LOGFONT));
LogFont.lfWeight = 400;
LogFont.lfCharSet = (BYTE)CharSetInfo.ciCharset;
LogFont.lfPitchAndFamily = FIXED_PITCH;
hFont = CreateFontIndirect(&LogFont);
hOldFont = (HFONT) SelectObject(pData->hDC, hFont);
}
if (!GetTextMetrics(pData->hDC, &tm)) {
// Essential text processing computation failed
goto Done;
}
CharHeight = tm.tmHeight + tm.tmExternalLeading;
CharWidth = tm.tmAveCharWidth;
if (!CharWidth || !CharHeight) {
// Essential text processing computation failed
goto Done;
}
//
// Calculate most fittable characters' number to one line.
//
PageWidth = GetDeviceCaps(pData->hDC, DESKTOPHORZRES);
PageHeight = GetDeviceCaps(pData->hDC, DESKTOPVERTRES);
CharsPerLine = PageWidth / CharWidth;
LinesPerPage = PageHeight / CharHeight;
if (!CharsPerLine || !LinesPerPage) {
// Essential text processing computation failed
goto Done;
}
/** Allocate a buffer for one line of text **/
pLineBuffer = (PBYTE)AllocSplMem(CharsPerLine + 5);
if (!pLineBuffer) {
goto Done;
}
/** Let the printer know we are starting a new document **/
if (!StartDoc(pData->hDC, (LPDOCINFO)&DocInfo)) {
goto Done;
}
ReadBufferStart = (BYTE *)AllocSplMem(READ_BUFFER_SIZE);
if (!ReadBufferStart) {
goto Done;
}
/** Print the data pData->Copies times **/
Copies = pData->Copies;
while (Copies--) {
/**
Loop, getting data and sending it to the printer. This also
takes care of pausing and cancelling print jobs by checking
the processor's status flags while printing. The way we do
this is to read in some data from the printer. We will then
pull data, one tabbed line at a time from there and print
it. If the last bit of data in the buffer does not make up
a whole line, we call GetTabbedLineFromBuffer() with a non-
zero Length, which indicates that there are chars left
from the previous read.
**/
TabBase = 0;
Length = 0;
fdwFlags = FLAG_TRANSLATE_CR | FLAG_TRANSLATE_LF;
CurrentLine = 0;
CurrentCol = 0;
/**
Open the printer. If it fails, return. This also sets up the
pointer for the ReadPrinter calls.
**/
if (!OpenPrinter(pDocumentName, &hPrinter, NULL)) {
hPrinter = NULL;
bAbortDoc = TRUE;
goto Done;
}
//
// Call GetPrinterData to see if the queue wants no LF/CR processing.
//
if( GetPrinterData( hPrinter,
(LPWSTR)gszNoTranslateCRLF,
NULL,
(PBYTE)&dwNoTranslate,
sizeof( dwNoTranslate ),
&dwNeeded ) == ERROR_SUCCESS ){
if( dwNoTranslate ){
fdwFlags &= ~( FLAG_TRANSLATE_CR | FLAG_TRANSLATE_LF );
}
}
//
// Call GetPrinterData to see if the queue wants no CR processing.
//
if( GetPrinterData( hPrinter,
(LPWSTR)gszNoTranslateCR,
NULL,
(PBYTE)&dwNoTranslateCR,
sizeof( dwNoTranslateCR ),
&dwNeeded ) == ERROR_SUCCESS ){
if( dwNoTranslateCR ){
fdwFlags &= ~FLAG_TRANSLATE_CR;
if( GetPrinterData( hPrinter,
(LPWSTR)gszTransparency,
NULL,
(PBYTE)&dwTransparent,
sizeof( dwTransparent ),
&dwNeeded ) == ERROR_SUCCESS ){
if( dwTransparent ){
iBkMode = SetBkMode( pData->hDC, TRANSPARENT );
}
}
}
}
if (StartPage(pData->hDC) == SP_ERROR) {
bAbortDoc = TRUE;
goto Done;
}
/** ReadAll indicates if we are on the last line of the file **/
ReadAll = FALSE;
/**
This next do loop continues until we have read all of the
data for the print job.
**/
do {
if (fdwFlags & FLAG_DBCS_SPLIT) {
SplitSize = (DWORD)(pReadBufferEnd - pReadBuffer);
memcpy(ReadBufferStart, pReadBuffer, SplitSize);
fdwFlags &= ~FLAG_DBCS_SPLIT;
}
else {
SplitSize = 0;
}
rc = ReadPrinter(hPrinter,
(ReadBufferStart + SplitSize),
(READ_BUFFER_SIZE - SplitSize),
&NoRead);
if (!rc || !NoRead) {
ReadAll = TRUE;
} else {
/** Pick up a pointer to the end of the data **/
pReadBuffer = ReadBufferStart;
pReadBufferEnd = ReadBufferStart + SplitSize + NoRead;
}
/**
This loop will process all the data that we have
just read from the printer.
**/
do {
if (!ReadAll) {
/**
Length on entry holds the length of any
residual chars from the last line that we couldn't
print out because we ran out of characters on
the ReadPrinter buffer.
**/
pReadBuffer = GetTabbedLineFromBuffer(
pReadBuffer,
pReadBufferEnd,
pLineBuffer,
CharsPerLine - CurrentCol,
pData->TabSize,
Encoding,
&Length,
&TabBase,
&fdwFlags );
/**
If pReadBuffer == NULL, then we have
exhausted the read buffer and we need to ReadPrinter
again and save the last line chars. Length holds
the number of characters on this partial line,
so the next time we call ReadPrinter we will
pickup where we left off.
The only time we'll get residual chars is if:
1. The last line ends w/o ff/lf/cr ("Hello\EOF")
In this case we should TextOutA the last line
and then quit.
(In this case, don't break here; go ahead and
print, then we'll break out below in the do..while.)
2. The ReadPrinter last byte is in the middle of a line.
Here we should read the next chunk and add the
new characters at the end of the chars we just read.
(In this case, we should break and leave Length
as it is so we will read again and append to the
buffer, beginning at Length.)
**/
if (!pReadBuffer || (fdwFlags & FLAG_DBCS_SPLIT))
break;
}
/** If the print processor is paused, wait for it to be resumed **/
if (pData->fsStatus & PRINTPROCESSOR_PAUSED) {
WaitForSingleObject(pData->semPaused, INFINITE);
}
/** If the job has been aborted, clean up and leave **/
if (pData->fsStatus & PRINTPROCESSOR_ABORTED) {
ReturnValue = TRUE;
bAbortDoc = TRUE;
goto Done;
}
/** Write the data to the printer **/
/** Make sure Length is not zero **/
/** TextOut will fail if Length == 0 **/
if (Length) {
/**
We may have a number of newlines pending, that
may push us to the next page (or even next-next
page).
**/
while (CurrentLine >= LinesPerPage) {
/**
We need a new page; always defer this to the
last second to prevent extra pages from coming out.
**/
if (EndPage(pData->hDC) == SP_ERROR ||
StartPage(pData->hDC) == SP_ERROR) {
bAbortDoc = TRUE;
goto Done;
}
CurrentLine -= LinesPerPage;
}
#pragma prefast(suppress:__WARNING_ANSI_APICALL, "By design. This function is inherently handling only ANSI text print jobs.")
if (TextOutA(pData->hDC,
CurrentCol * CharWidth,
CurrentLine * CharHeight,
(LPCSTR)pLineBuffer,
Length) == FALSE) {
ODS(("TextOut() failed\n"));
bAbortDoc = TRUE;
goto Done;
}
CurrentCol += Length;
}
/**
Even if the length is zero, increment the line.
Should happen when the character is only 0x0D or 0x0A.
**/
if (fdwFlags & FLAG_CR) {
CurrentCol=0;
fdwFlags &= ~FLAG_CR;
}
if (fdwFlags & FLAG_LF) {
CurrentLine++;
fdwFlags &= ~FLAG_LF;
}
/**
We need a new page. Set the current line to the
end of the page. We could do a End/StartPage
sequence, but this may cause a blank page to get
ejected.
Note: this code will avoid printing out pages that
consist of formfeeds only (if you have a page with a
space in it, that counts as text).
**/
if (fdwFlags & FLAG_FF) {
CurrentLine = LinesPerPage;
CurrentCol = 0;
fdwFlags &= ~FLAG_FF;
}
/**
We have done the text out, so these characters have
been successfully printed. Zero out Length
so these characters won't be printed again
**/
Length = 0;
/**
We only terminate this loop if we run out of chars
or we run out of read buffer.
**/
} while (pReadBuffer && pReadBuffer != pReadBufferEnd);
/** Keep going until we get the last line **/
} while (!ReadAll);
if (EndPage(pData->hDC) == SP_ERROR) {
bAbortDoc = TRUE;
goto Done;
}
/**
Close the printer - we open/close the printer for each
copy so the data pointer will rewind.
**/
ClosePrinter(hPrinter);
hPrinter = NULL;
} /* While copies to print */
/** Let the printer know that we are done printing **/
EndDoc(pData->hDC);
ReturnValue = TRUE;
Done:
if (dwTransparent)
SetBkMode( pData->hDC, iBkMode );
if (hPrinter)
ClosePrinter(hPrinter);
if (bAbortDoc)
AbortDoc(pData->hDC);
if (pLineBuffer)
FreeSplMem(pLineBuffer);
if (hOldFont)
{
SelectObject(pData->hDC, hOldFont);
DeleteObject(hFont);
}
if (ReadBufferStart)
{
FreeSplMem(ReadBufferStart);
}
return ReturnValue;
}
// **********************************************************************
// RawDataToPrinter - sends binary data directly to a printer
//
// Params:
// szPrinterName - NULL terminated string specifying printer name
// lpData - Pointer to raw data bytes
// dwCount - Length of lpData in bytes
//
// Returns: TRUE for success, FALSE for failure.
//
BOOL RawDataToPrinter( LPTSTR szPrinterName, LPBYTE lpData, DWORD dwCount )
{
HANDLE hPrinter;
DOC_INFO_1 DocInfo;
DWORD dwJob;
DWORD dwBytesWritten;
// Need a handle to the printer.
if( ! OpenPrinter( szPrinterName, &hPrinter, NULL ) )
{
PrintError( GetLastError(), TEXT("OpenPrinter") );
return FALSE;
}
// Fill in the structure with info about this "document."
DocInfo.pDocName = TEXT("My Document");
DocInfo.pOutputFile = NULL;
DocInfo.pDatatype = TEXT("RAW");
// Inform the spooler the document is beginning.
if( (dwJob = StartDocPrinter( hPrinter, 1, (LPBYTE)&DocInfo )) == 0 )
{
PrintError( GetLastError(), TEXT("StartDocPrinter") );
ClosePrinter( hPrinter );
return FALSE;
}
// Start a page.
if( ! StartPagePrinter( hPrinter ) )
{
PrintError( GetLastError(), TEXT("StartPagePrinter") );
EndDocPrinter( hPrinter );
ClosePrinter( hPrinter );
return FALSE;
}
// Send the data to the printer.
if( ! WritePrinter( hPrinter, lpData, dwCount, &dwBytesWritten ) )
{
PrintError( GetLastError(), TEXT("WritePrinter") );
EndPagePrinter( hPrinter );
EndDocPrinter( hPrinter );
ClosePrinter( hPrinter );
return FALSE;
}
/*********************************/
// CODE USED TO READ THE PRINTER
LPBYTE retData = NULL;
LPDWORD bbr = NULL;
if(ReadPrinter(hPrinter, retData, 1, bbr))
{
printf("OUT : %i", retData);
}
else
{
printf("Failed to read printer");
}
/*********************************/
// End the page.
if( ! EndPagePrinter( hPrinter ) )
{
PrintError( GetLastError(), TEXT("EndPagePrinter") );
EndDocPrinter( hPrinter );
ClosePrinter( hPrinter );
return FALSE;
}
// Inform the spooler that the document is ending.
if( ! EndDocPrinter( hPrinter ) )
{
PrintError( GetLastError(), TEXT("EndDocPrinter") );
ClosePrinter( hPrinter );
return FALSE;
}
// Tidy up the printer handle.
ClosePrinter( hPrinter );
// Check to see if correct number of bytes were written.
if( dwBytesWritten != dwCount )
{
//printf( TEXT("Wrote %d bytes instead of requested %d bytes.\n"), dwBytesWritten, dwCount );
return FALSE;
}
return TRUE;
}