<div class="content"><p>RpcEnumPrinterDrivers enumerates the <a href="831cd729-be7c-451e-b729-bd8d84ce4d24#gt_1a48eebd-e72c-494d-b8cb-84dfb7bc3b65" data-linktype="relative-path">printer drivers</a> installed
on a specified <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 RpcEnumPrinterDrivers(
   [in, string, unique] STRING_HANDLE pName,
   [in, string, unique] wchar_t* pEnvironment,
   [in] DWORD Level,
   [in, out, unique, size_is(cbBuf), disable_consistency_check] 
     BYTE* pDrivers,
   [in] DWORD cbBuf,
   [out] DWORD* pcbNeeded,
   [out] DWORD* pcReturned
 );
</pre></div>
</dd></dl><p><b>pName: </b>Specified in <a href="acb355a4-913b-4abb-8cb5-415aea160015" data-linktype="relative-path">Print Server Name
Parameters (section 3.1.4.1.4)</a>.</p><p><b>pEnvironment: </b>Specified in <a href="5b2bf7d5-ac77-464f-be5e-f3a7c1782246" data-linktype="relative-path">Environment Name
Parameters (section 3.1.4.1.3)</a>.<a id="Appendix_A_Target_327"></a><a aria-label="Product behavior note 327" href="e81cbc09-ab05-4a32-ae4a-8ec57b436c43#Appendix_A_327" data-linktype="relative-path">&lt;327&gt;</a></p><p><b>Level: </b>The driver information level.</p><dl>
<dd>
<table><thead>
  <tr>
   <th>
   <p>Value</p>
   </th>
   <th>
   <p>Description</p>
   </th>
  </tr>
 </thead><tbody><tr>
  <td>
  <p>0x00000001</p>
  </td>
  <td>
  <p>Corresponds to <a href="59eab354-82fd-4299-884e-9a1226073a4a" data-linktype="relative-path">_DRIVER_INFO_1 (section 2.2.2.4.1)</a>.</p>
  </td>
 </tr><tr>
  <td>
  <p>0x00000002</p>
  </td>
  <td>
  <p>Corresponds to <a href="2825d22e-c5a5-47cd-a216-3e903fd6e030" data-linktype="relative-path">_DRIVER_INFO_2 (section 2.2.2.4.2)</a>.</p>
  </td>
 </tr><tr>
  <td>
  <p>0x00000003</p>
  </td>
  <td>
  <p>Corresponds to <a href="b9a54cc1-e79f-45c8-a126-1acd1f0f8663" data-linktype="relative-path">_DRIVER_INFO_3 (section 2.2.2.4.3)</a>.</p>
  </td>
 </tr><tr>
  <td>
  <p>0x00000004</p>
  </td>
  <td>
  <p>Corresponds to <a href="2a53e910-04c3-4aba-905a-26741dcd59dd" data-linktype="relative-path">_DRIVER_INFO_4 (section 2.2.2.4.4)</a>.</p>
  </td>
 </tr><tr>
  <td>
  <p>0x00000005</p>
  </td>
  <td>
  <p>Corresponds to <a href="e20b5b55-7349-4f50-a9f2-bcc02d958cfc" data-linktype="relative-path">_DRIVER_INFO_5 (section 2.2.2.4.5)</a>.</p>
  </td>
 </tr><tr>
  <td>
  <p>0x00000006</p>
  </td>
  <td>
  <p>Corresponds to <a href="9a048522-4746-44c2-ac92-d881ac1f36a8" data-linktype="relative-path">_DRIVER_INFO_6 (section 2.2.2.4.6)</a>.</p>
  </td>
 </tr><tr>
  <td>
  <p>0x00000008</p>
  </td>
  <td>
  <p>Corresponds to <a href="f9b749d6-08fc-4820-8d7b-fe0ee33e42c5" data-linktype="relative-path">_DRIVER_INFO_8 (section 2.2.2.4.8)</a>.</p>
  </td>
 </tr></tbody></table>
</dd></dl><p><b>pDrivers: </b>A pointer to the <a href="f29e9057-df29-40d4-9c51-c615c0da62a1" data-linktype="relative-path">BUFFER</a>, as specified in
INFO Structures Query Parameters (section 3.1.4.1.9).</p><p><b>BUFFER TYPE:</b> _DRIVER_INFO.</p><dl>
<dd>
<p>This parameter can be NULL if <i>cbBuf</i> equals
zero.</p>
</dd></dl><p><b>cbBuf: </b>Specified in INFO Structures Query Parameters (section 3.1.4.1.9).</p><p><b>pcbNeeded: </b>Specified in INFO Structures Query
Parameters (section 3.1.4.1.9).</p><p><b>pcReturned: </b>Specified in INFO Structures Query
Parameters (section 3.1.4.1.9).</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 perform the
validation steps specified in the following sections:</p><ul><li><p><span><span> 
</span></span>Print Server Name Parameters (section 3.1.4.1.4).</p>
</li><li><p><span><span> 
</span></span>Environment Name Parameters (section 3.1.4.1.3).</p>
</li><li><p><span><span> 
</span></span>INFO Structures Query Parameters (section 3.1.4.1.9).</p>
</li></ul><p>Additional validation MAY<a id="Appendix_A_Target_328"></a><a aria-label="Product behavior note 328" href="e81cbc09-ab05-4a32-ae4a-8ec57b436c43#Appendix_A_328" data-linktype="relative-path">&lt;328&gt;</a> be
performed.</p><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:<a id="Appendix_A_Target_329"></a><a aria-label="Product behavior note 329" href="e81cbc09-ab05-4a32-ae4a-8ec57b436c43#Appendix_A_329" data-linktype="relative-path">&lt;329&gt;</a></p><ul><li><p><span><span> 
</span></span>Enumerate all drivers on the specified print server that match
the requested environment.</p>
</li><li><p><span><span> 
</span></span>Using the enumerated objects, perform the processing and response
steps specified in INFO Structures Query
Parameters (section 3.1.4.1.9).</p>
</li><li><p><span><span> 
</span></span>If at any point during the operation the print server failed to
calculate the size of the <b>INFO</b> structure for any printer driver, the
print server SHOULD fail the operation immediately and return ERROR_CAN_NOT_COMPLETE.<a id="Appendix_A_Target_330"></a><a aria-label="Product behavior note 330" href="e81cbc09-ab05-4a32-ae4a-8ec57b436c43#Appendix_A_330" data-linktype="relative-path">&lt;330&gt;</a></p>
</li><li><p><span><span> 
</span></span>Return the status of the operation.</p>
</li></ul></div>