📄 howto send raw data to a printer by using the win32 api.htm
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<LI style="PADDING-BOTTOM: 2px; PADDING-TOP: 0px">Microsoft
Windows 2000 , Advanced Server </LI></UL>
<UL style="MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px">
<LI style="PADDING-BOTTOM: 2px; PADDING-TOP: 0px">Microsoft
Windows 2000 , Server </LI></UL>
<UL style="MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px">
<LI style="PADDING-BOTTOM: 2px; PADDING-TOP: 0px">Microsoft
Windows 2000 , Professional </LI></UL><BR>
<HR>
<BR>
<H3>SUMMARY</H3>
<P>It is sometimes necessary to send printer-specific data directly
to a printer, bypassing the driver. The Win32 API provides a do it
that works on local and networked printers. This method can be used
to replace the PASSTHROUGH escape and <B>SpoolFile() </B>methods
used in previous versions of the Windows API. </P><BR>
<H3>MORE INFORMATION</H3>
<P>
<H3>Sample Code </H3>You can use the following code to send raw data
directly to a printer in Windows NT or Windows 95. <PRE class=kbcode> // 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(LPSTR 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 ) )
return FALSE;
// Fill in the structure with info about this "document."
DocInfo.pDocName = "My Document";
DocInfo.pOutputFile = NULL;
DocInfo.pDatatype = "RAW";
// Inform the spooler the document is beginning.
if( (dwJob = StartDocPrinter( hPrinter, 1, (LPSTR)&DocInfo )) == 0 )
{
ClosePrinter( hPrinter );
return FALSE;
}
// Start a page.
if( ! StartPagePrinter( hPrinter ) )
{
EndDocPrinter( hPrinter );
ClosePrinter( hPrinter );
return FALSE;
}
// Send the data to the printer.
if( ! WritePrinter( hPrinter, lpData, dwCount, &dwBytesWritten ) )
{
EndPagePrinter( hPrinter );
EndDocPrinter( hPrinter );
ClosePrinter( hPrinter );
return FALSE;
}
// End the page.
if( ! EndPagePrinter( hPrinter ) )
{
EndDocPrinter( hPrinter );
ClosePrinter( hPrinter );
return FALSE;
}
// Inform the spooler that the document is ending.
if( ! EndDocPrinter( hPrinter ) )
{
ClosePrinter( hPrinter );
return FALSE;
}
// Tidy up the printer handle.
ClosePrinter( hPrinter );
// Check to see if correct number of bytes were written.
if( dwBytesWritten != dwCount )
return FALSE;
return TRUE;
}
</PRE>The following file is available for download from the
Microsoft Download Center: <BR><BR>
<BLOCKQUOTE><A class=kblink
href="http://support.microsoft.com/default.aspx?scid=http://download.microsoft.com/download/platformsdk/Utility/95/WIN98/EN-US/RAWPRN.EXE"
target=_top>RAWPRN.EXE </A></BLOCKQUOTE>Release Date: February 10,
2000 <BR><BR>For additional information about how to download
Microsoft Support files, click the article number below to view the
article in the Microsoft Knowledge Base:
<BLOCKQUOTE><A class=kblink
href="http://support.microsoft.com/default.aspx?scid=kb;en-us;Q119591">Q119591</A>
How to Obtain Microsoft Support Files from Online Services
</BLOCKQUOTE>Microsoft used the most current virus detection
software available on the date of posting to scan this file for
viruses. Once posted, the file is housed on secure servers that
prevent any unauthorized changes to the file. <BR><BR><BR><BR>For
additional information about how to download Microsoft Support
files, click the article number below to view the article in the
Microsoft Knowledge Base:
<BLOCKQUOTE><A class=kblink
href="http://support.microsoft.com/default.aspx?scid=kb;en-us;Q119591">Q119591</A>
How to Obtain Microsoft Support Files from Online Services
</BLOCKQUOTE>Microsoft used the most current virus detection
software available on the date of posting to scan this file for
viruses. Once posted, the file is housed on secure servers that
prevent any unauthorized changes to the file. <BR><BR>
<P></P><BR>
<H3>REFERENCES</H3>
<P>For additional information, please see the following article in
the Microsoft Knowledge Base:
<BLOCKQUOTE><A class=kblink
href="http://support.microsoft.com/default.aspx?scid=kb;en-us;Q154078">Q154078</A>
HOWTO: SendRaw Data to a Printer Using the Win32 API from VB
</BLOCKQUOTE>
<P></P>
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<TD align=right vAlign=top width="10%" N0WRAP="1"><FONT size=1
NAME="Verdana, Arial, Helvetica"><B>Published</B></FONT></TD>
<TD><FONT size=1 NAME="Verdana, Arial, Helvetica">Oct 26 1995
12:00AM </FONT></TD>
<TD align=right noWrap vAlign=top width="10%"><FONT size=1
NAME="Verdana, Arial, Helvetica"><B>Issue Type</B></FONT></TD>
<TD><FONT size=1 NAME="Verdana, Arial, Helvetica">kbhowto
</FONT></TD></TR>
<TR>
<TD align=right noWrap vAlign=top width="10%"><FONT size=1
NAME="Verdana, Arial, Helvetica"><B>Last Modifed</B></FONT></TD>
<TD><FONT size=1 NAME="Verdana, Arial, Helvetica">Sep 7 2001
11:13AM </FONT></TD>
<TD align=right noWrap vAlign=top width="10%"><FONT size=1
NAME="Verdana, Arial, Helvetica"><B>Additional Query
Words</B></FONT></TD>
<TD><FONT size=1 NAME="Verdana, Arial, Helvetica">RAWPRN
RAW.DRV binary </FONT></TD></TR>
<TR>
<TD align=right vAlign=top width="10%" HOWRAP="1"><FONT size=1
NAME="Verdana, Arial, Helvetica"><B>Keywords</B></FONT></TD>
<TD colSpan=3><FONT size=1
NAME="Verdana, Arial, Helvetica">kbcode kbprint kbOSWinNT351
kbOSWin2000 kbPrinting kbSDKWin32 kbOSWin95 kbFAQ kbDSupport
kbGDIFAQ </FONT></TD></TR></TBODY></TABLE>
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