<div class="content"><p>RpcWritePrinter sends data to the <a href="831cd729-be7c-451e-b729-bd8d84ce4d24#gt_59fb3ddc-63cf-45df-8a90-46a6af9e00cb" data-linktype="relative-path">print server</a>.</p><dl>
<dd>
<div><pre> DWORD RpcWritePrinter(
   [in] PRINTER_HANDLE hPrinter,
   [in, size_is(cbBuf)] BYTE* pBuf,
   [in] DWORD cbBuf,
   [out] DWORD* pcWritten
 );
</pre></div>
</dd></dl><p><b>hPrinter: </b>A handle to a printer object or <a href="831cd729-be7c-451e-b729-bd8d84ce4d24#gt_ac027425-6043-4ad3-be27-56a381b75d38" data-linktype="relative-path">port</a> object that was opened
by <a href="bd0bb8d5-26fd-4705-81f5-614d32b9f38f" data-linktype="relative-path">RpcAddPrinter (section 3.1.4.2.3)</a>,
<a href="3af45717-308f-4b4f-8428-430d12856110" data-linktype="relative-path">RpcAddPrinterEx (section 3.1.4.2.15)</a>,
<a href="989357e2-446e-4872-bb38-1dce21e1313f" data-linktype="relative-path">RpcOpenPrinter (section 3.1.4.2.2)</a>,
or <a href="0e81ce18-72b1-46c3-8584-a205393b04ff" data-linktype="relative-path">RpcOpenPrinterEx (section 3.1.4.2.14)</a>.</p><p><b>pBuf: </b>A pointer to a buffer that contains the
data to be written. This parameter can be NULL if the value of the <i>cbBuf</i>
parameter is zero.</p><p><b>cbBuf: </b>The number of bytes of data to be
written.</p><p><b>pcWritten: </b>A pointer to a value that receives
the number of bytes of data that were written.</p><p><b>Return Values: </b>This method MUST return zero
(ERROR_SUCCESS) to indicate successful completion or a nonzero Windows error
code to indicate failure <a href="../ms-erref/1bc92ddf-b79e-413c-bbaa-99a5281a6c90" data-linktype="relative-path">[MS-ERREF]</a>.</p><p>Upon receiving this message, the server MUST validate
parameters as follows:</p><ul><li><p><span><span> 
</span></span>Perform the validation steps that are specified in <a href="10bfa8c2-d456-4ad0-912d-e674766a36c8" data-linktype="relative-path">PRINTER_HANDLE Parameters</a>,
section 3.1.4.1.11. This method SHOULD assume that the handle to the printer or
port object can be used without further access checks.</p>
</li><li><p><span><span> 
</span></span>Verify that a job has been associated with <i>hPrinter</i> using <a href="90f95ff0-3ae0-4dde-a83d-35f457c710a6" data-linktype="relative-path">RpcStartDocPrinter</a>, and if
that verification fails, return ERROR_SPL_NO_STARTDOC [MS-ERREF].</p>
</li><li><p><span><span> 
</span></span>Verify that printing of the job has not been canceled, and if
that verification fails, return ERROR_PRINT_CANCELLED [MS-ERREF].</p>
</li><li><p><span><span> 
</span></span>If <i>cbBuf</i> is not zero, verify that <i>pBuf</i> is not NULL.</p>
</li></ul><p>If parameter validation fails, the server MUST fail the
operation immediately and return a nonzero error response to the client.
Otherwise, the server MUST process the message and compose a response to the
client as follows:</p><ul><li><p><span><span> 
</span></span>If the <i>hPrinter</i> parameter is a printer object handle, copy
<i>cbBuf</i> bytes of data pointed to by <i>pBuf</i> to the job; depending on
server policy and settings, the data is added to temporary storage of the job
(for example, a <a href="831cd729-be7c-451e-b729-bd8d84ce4d24#gt_4c0e7da9-88a8-4430-abd7-27e7250b8180" data-linktype="relative-path">spool file</a>),
or sent directly to the port.</p>
</li><li><p><span><span> 
</span></span>If the <i>hPrinter</i> parameter is a port object handle, copy <i>cbBuf</i>
bytes of data pointed to by <i>pBuf</i> directly to the port.</p>
</li><li><p><span><span> 
</span></span>Write the number of bytes that were written to the variable that
is pointed to by the <i>pcWritten</i> parameter.</p>
</li><li><p><span><span> 
</span></span>Return the status of the operation.</p>
</li><li><p><span><span> 
</span></span>If the operation is successful, the server MUST modify the job
object to indicate the number of bytes written so far to that job.</p>
</li></ul></div>