426 lines
12 KiB
HTML
426 lines
12 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>Retrieve Read Information (QsnRtvReadInf) API</title>
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<!-- Begin Header Records ========================================== -->
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<!-- DSMMST1 SCRIPT A converted by B2H R4.1 (346) (CMS) by V2KEA304 -->
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<!-- at RCHVMW2 on 29 Jan 1999 at 16:05:09 -->
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<!-- Change History: -->
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<!-- YYMMDD USERID Change description -->
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<!--File Edited October 2001 -->
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<!--End Header Records -->
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<a name="top_Of_Page"></a>
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<!-- Java sync-link -->
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<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
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</script>
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<h2>Retrieve Read Information (QsnRtvReadInf) API</h2>
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<div class="box" style="width: 70%;">
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<br>
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Required Parameter Group:<br>
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<!-- iddvc RMBR -->
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<br>
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<table width="100%">
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<tr>
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<td align="center" valign="top" width="10%">1</td>
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<td align="left" valign="top" width="50%">Input buffer handle</td>
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<td align="left" valign="top" width="20%">Input</td>
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<td align="left" valign="top" width="20%">Binary(4)</td>
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</tr>
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<tr>
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<td align="center" valign="top">2</td>
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<td align="left" valign="top">Query result</td>
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<td align="left" valign="top">Output</td>
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<td align="left" valign="top">Char(*)</td>
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</tr>
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<tr>
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<td align="center" valign="top">3</td>
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<td align="left" valign="top">Length of query result</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Binary(4)</td>
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</tr>
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</table>
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<br>
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Omissible Parameter Group:<br>
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<!-- iddvc RMBR -->
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<br>
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<table width="100%">
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<tr>
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<td align="center" valign="top" width="10%">4</td>
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<td align="left" valign="top" width="50%">Low-level environment handle</td>
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<td align="left" valign="top" width="20%">Input</td>
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<td align="left" valign="top" width="20%">Binary(4)</td>
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</tr>
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<tr>
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<td align="center" valign="top">5</td>
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<td align="left" valign="top">Error code</td>
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<td align="left" valign="top">I/O</td>
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<td align="left" valign="top">Char(*)</td>
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</tr>
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</table>
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<br>
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Returned Value:<br>
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<!-- iddvc RMBR -->
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<br>
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<table width="100%">
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<tr>
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<td align="center" valign="top" width="10%"></td>
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<td align="left" valign="top" width="50%">Return code</td>
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<td align="left" valign="top" width="20%">Output</td>
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<td align="left" valign="top" width="20%">Binary(4)</td>
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</tr>
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</table>
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<br>
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Default Public Authority: *USE<br>
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<!-- iddvc RMBR -->
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<br>
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Service Program: QSNAPI<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: No<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The Retrieve Read Information (QsnRtvReadInf) API returns information about
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the input operation that filled the given input buffer.</p>
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<br>
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<h3>Authorities and Locks</h3>
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<p>None</p>
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<br>
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<h3>Required Parameter Group</h3>
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<dl>
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<dt><strong>Input buffer handle</strong></dt>
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<dd>INPUT; BINARY(4)
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<p>A handle for the input buffer that contains the results of the input
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operation.</p>
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</dd>
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<dt><strong>Query result</strong></dt>
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<dd>OUTPUT; CHAR(*)
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<p>The structure that contains the result of the query when the QsnRtvReadInf
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API has completed. The format of this structure is shown in <a href=
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"#HDRQRYFMT">Format of the Query Result</a>.</p>
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</dd>
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<dt><strong>Length of query result</strong></dt>
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<dd>INPUT; BINARY(4)
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<p>The length of the query result parameter. The minimum value must be 8.</p>
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</dd>
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</dl>
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<br>
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<h3>Omissible Parameter Group</h3>
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<dl>
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<dt><strong>Low-level environment handle</strong></dt>
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<dd>INPUT; BINARY(4)
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<p>The low-level environment that the operation applies to. If this parameter
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is omitted or given with a value of zero, the default low-level environment is
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used.</p>
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</dd>
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<dt><strong>Error code</strong></dt>
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<dd>I/O; CHAR(*)
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<p>The structure in which to return error information. For the format of the
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structure, see <a href="../apiref/error.htm#hdrerrcod">Error Code Parameter</a>. If this
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parameter is omitted, diagnostic and escape messages are issued to the
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application.</p>
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</dd>
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</dl>
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<br>
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<h3>Returned Value</h3>
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<dl>
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<dt><strong>Return code</strong></dt>
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<dd>OUTPUT; BINARY(4)
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<p>A return code indicating the result of the operation. The value returned
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will be 0 if the operation was successful, or -1 otherwise.</p>
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</dd>
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</dl>
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<br>
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<h3><a name="HDRQRYFMT">Format of the Query Result</a></h3>
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<table border width="80%">
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<tr>
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<th align="center" valign="bottom" colspan="2">Offset</th>
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<th align="left" valign="bottom" rowspan="2">Type</th>
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<th align="left" valign="bottom" rowspan="2">Field</th>
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</tr>
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<tr>
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<th align="center" valign="bottom">Dec</th>
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<th align="center" valign="bottom">Hex</th>
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</tr>
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<tr>
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<td align="center" valign="top" width="10%">0</td>
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<td align="center" valign="top" width="10%">0</td>
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<td align="left" valign="top" width="20%">BINARY(4)</td>
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<td align="left" valign="top" width="60%">Bytes returned</td>
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</tr>
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<tr>
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<td align="center" valign="top">4</td>
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<td align="center" valign="top">4</td>
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<td align="left" valign="top">BINARY(4)</td>
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<td align="left" valign="top">Bytes available</td>
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</tr>
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<tr>
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<td align="center" valign="top">8</td>
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<td align="center" valign="top">8</td>
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<td align="left" valign="top">CHAR(8)</td>
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<td align="left" valign="top">Reserved</td>
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</tr>
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<tr>
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<td align="center" valign="top">16</td>
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<td align="center" valign="top">10</td>
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<td align="left" valign="top">PTR(SPP)</td>
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<td align="left" valign="top">Pointer to first byte of data</td>
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</tr>
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<tr>
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<td align="center" valign="top">32</td>
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<td align="center" valign="top">20</td>
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<td align="left" valign="top">PTR(SPP)</td>
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<td align="left" valign="top">Pointer to first byte of field data</td>
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</tr>
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<tr>
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<td align="center" valign="top">48</td>
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<td align="center" valign="top">30</td>
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<td align="left" valign="top">BINARY(4)</td>
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<td align="left" valign="top">Number of bytes of input data</td>
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</tr>
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<tr>
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<td align="center" valign="top">52</td>
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<td align="center" valign="top">34</td>
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<td align="left" valign="top">BINARY(4)</td>
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<td align="left" valign="top">Number of bytes of field data</td>
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</tr>
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<tr>
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<td align="center" valign="top">56</td>
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<td align="center" valign="top">38</td>
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<td align="left" valign="top">BINARY(4)</td>
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<td align="left" valign="top">Number of fields in input buffer</td>
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</tr>
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<tr>
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<td align="center" valign="top">60</td>
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<td align="center" valign="top">3C</td>
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<td align="left" valign="top">BINARY(4)</td>
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<td align="left" valign="top">Number of bytes of data received</td>
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</tr>
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<tr>
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<td align="center" valign="top">64</td>
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<td align="center" valign="top">40</td>
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<td align="left" valign="top">BINARY(4)</td>
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<td align="left" valign="top">Row location of cursor</td>
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</tr>
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<tr>
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<td align="center" valign="top">68</td>
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<td align="center" valign="top">44</td>
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<td align="left" valign="top">BINARY(4)</td>
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<td align="left" valign="top">Column location of cursor</td>
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</tr>
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<tr>
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<td align="center" valign="top">72</td>
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<td align="center" valign="top">48</td>
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<td align="left" valign="top">CHAR(1)</td>
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<td align="left" valign="top">AID code for AID-associated read request</td>
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</tr>
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<tr>
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<td align="center" valign="top">73</td>
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<td align="center" valign="top">49</td>
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<td align="left" valign="top">CHAR(7)</td>
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<td align="left" valign="top">Reserved</td>
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</tr>
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</table>
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<br>
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<br>
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<h3>Field Descriptions</h3>
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<p><strong>Bytes available.</strong> The number of bytes of data available to
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be returned. All available data is returned if enough space is provided.</p>
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<p><strong>Bytes returned.</strong> The number of bytes of data returned.</p>
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<p><strong>AID code for AID-associated read request.</strong> AID code
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corresponding to key pressed to service an AID-associated read request. The
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input buffer must be filled as a result of a QsnReadInp, QsnReadMDT, or
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QsnReadMDTAlt operation. If the input buffer is filled as a result of any other
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input operation, this field is set to X'00'. See <a href="dsm1e.htm#HDRAID">
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AID-Generating Keys</a> for a description of the possible values.</p>
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<p><strong>Column location of cursor.</strong> Column location of cursor when
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the input operation was serviced. The input buffer must be filled as a result
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of a QsnReadInp, QsnReadMDT, QsnReadMDTAlt, QsnReadImm, or QsnReadMDTImmAlt
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operation. If the input buffer is filled as a result of any other input
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operation, this field is set to -1.</p>
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<p><strong>Number of bytes of data sent.</strong> Number of bytes of data sent
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from screen. If this value is larger than the number of bytes of input data,
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then truncation occurs on the input operation.</p>
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<p><strong>Number of bytes of field data.</strong> Number of bytes of field
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data in input buffer. This does not include the 3 bytes of header information
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(the cursor row and column, and the AID byte). The input buffer must be filled
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as a result of a QsnReadInp, QsnReadMDT, QsnReadMDTAlt, QsnReadImm, or
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QsnReadMDTImmAlt operation. If the input buffer is filled as a result of any
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other input operation, this field is set to -1.</p>
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<p><strong>Number of bytes of input data.</strong> Number of bytes of input
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data in input buffer. This includes header information such as row and column
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position.</p>
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<p><strong>Number of fields in input buffer.</strong> Number of fields in input
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buffer. This does not include header information such as row and column
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position. The input buffer must be filled as a result of a QsnReadMDT,
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QsnReadMDTAlt, or QsnReadMDTImmAlt operation. If the input buffer is filled as
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a result of any other input operation, or the input data format cannot be
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determined, this field is set to -1.</p>
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<p><strong>Pointer to first byte of data.</strong> Pointer to first byte of
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data in input buffer. This includes header information such as row and column
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position.</p>
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<p><strong>Pointer to first byte of field data.</strong> Pointer to first byte
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of field data in input buffer. This will be the first byte of data following
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the header information (the cursor row and column, and the AID byte). If the
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buffer does not contain field data, this field is set to the null pointer.</p>
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<p><strong>Reserved.</strong> An ignored field.</p>
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<p><strong>Row location of cursor.</strong> Row location of cursor when the
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input operation was serviced. The input buffer must be filled as a result of a
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QsnReadInp, QsnReadMDT, QsnReadMDTAlt, QsnReadImm, or QsnReadMDTImmAlt
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operation. If the input buffer is filled as a result of any other input
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operation, this field is set to -1.</p>
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<br>
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<h3>Error Messages</h3>
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<table width="100%" cellpadding="3">
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<!-- cols="15 85" -->
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<tr>
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<th align="left" valign="top">Message ID</th>
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<th align="left" valign="top">Error Message Text</th>
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</tr>
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<tr>
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<td align="left" valign="top">CPF24B4 E</td>
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<td valign="top">Severe error while addressing parameter list.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF3C1F E</td>
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<td valign="top">Pointer is not on a 16 byte boundary.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF3C24 E</td>
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<td valign="top">Length of the receiver variable is not valid.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF3CF1 E</td>
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<td valign="top">Error code parameter not valid.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF3CF2 E</td>
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<td valign="top">Error(s) occurred during running of &1 API.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPFA319 E</td>
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<td valign="top">No data in input buffer.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPFA31E E</td>
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<td valign="top">Required parameter &1 omitted.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPFA320 E</td>
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<td valign="top">Pointer parameter is null.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPFA32F E</td>
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<td valign="top">Buffer type incorrect.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPFA331 E</td>
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<td valign="top">Buffer handle incorrect.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPFA334 E</td>
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<td valign="top">Low level environment handle incorrect.</td>
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</tr>
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</table>
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<br>
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<hr>
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API introduced: V2R3
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
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"dsm.htm">Dynamic Screen Manager APIs</a> | <a href="aplist.htm">APIs by
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category</a></td>
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</tr>
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</table>
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</center>
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</body>
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</html>
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