ibm-information-center/dist/eclipse/plugins/i5OS.ic.apis_5.4.0.1/QsnRtvSsnD.htm

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<title>Retrieve Session Description (QsnRtvSsnD) API</title>
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<h2>Retrieve Session Description (QsnRtvSsnD) API</h2>
<div class="box" style="width: 65%;">
<br>
&nbsp;&nbsp;Required Parameter Group:<br>
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<table width="100%">
<tr>
<td align="center" valign="top" width="10%">1</td>
<td align="left" valign="top" width="50%">Session handle</td>
<td align="left" valign="top" width="20%">Input</td>
<td align="left" valign="top" width="20%">Binary(4)</td>
</tr>
<tr>
<td align="center" valign="top">2</td>
<td align="left" valign="top">Session description</td>
<td align="left" valign="top">Output</td>
<td align="left" valign="top">Char(*)</td>
</tr>
<tr>
<td align="center" valign="top">3</td>
<td align="left" valign="top">Length of session description</td>
<td align="left" valign="top">Input</td>
<td align="left" valign="top">Binary(4)</td>
</tr>
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&nbsp;&nbsp;Omissible Parameter:<br>
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<td align="center" valign="top" width="10%">4</td>
<td align="left" valign="top" width="50%">Error code</td>
<td align="left" valign="top" width="20%">I/O</td>
<td align="left" valign="top" width="20%">Char(*)</td>
</tr>
</table>
<br>
&nbsp;&nbsp;Returned Value:<br>
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<td align="center" valign="top" width="10%"></td>
<td align="left" valign="top" width="50%">Return code</td>
<td align="left" valign="top" width="20%">Output</td>
<td align="left" valign="top" width="20%">Binary(4)</td>
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&nbsp;&nbsp;Default Public Authority: *USE<br>
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&nbsp;&nbsp;Service Program: QSNAPI<br>
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&nbsp;&nbsp;Threadsafe: No<br>
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<p>The Retrieve Session Description (QsnRtvSsnD) API retrieves a copy of the
session description for the given session. The session description may be
different from the session description used when the Create a Session
(QsnCrtSsn) or the Change Session (QsnChgSsn) API is called. The following
fields will have actual values replacing 0 (if used):</p>
<blockquote>
<p>Number of rows in scroller</p>
<p>Number of columns in scroller</p>
<p>Default number of rows to roll scroller by</p>
<p>Default number of columns to shift scroller by</p>
</blockquote>
<br>
<h3>Authorities and Locks</h3>
<p>None</p>
<br>
<h3>Required Parameter Group</h3>
<dl>
<dt><strong>Session handle</strong></dt>
<dd>INPUT; BINARY(4)
<p>A handle for the session for which the session description should be
returned.</p>
</dd>
<dt><strong>Session description</strong></dt>
<dd>OUTPUT; CHAR(*)
<p>The format of the data is shown in <a href="#HDRSSRDESC">Format of the
Session Description Returned</a>.</p>
</dd>
<dt><strong>Length of session description</strong></dt>
<dd>INPUT; BINARY(4)
<p>The length of the session description parameter.</p>
</dd>
</dl>
<br>
<h3>Omissible Parameter</h3>
<dl>
<dt><strong>Error code</strong></dt>
<dd>I/O; CHAR(*)
<p>The structure in which to return error information. For the format of the
structure, see <a href="../apiref/error.htm#hdrerrcod">Error Code Parameter</a>. If this
parameter is omitted, diagnostic and escape messages are issued to the
application.</p>
</dd>
</dl>
<br>
<h3>Returned Value</h3>
<dl>
<dt><strong>Return code</strong></dt>
<dd>OUTPUT; BINARY(4)
<p>A return code indicating the result of the operation. The value returned
will be 0 if the operation was successful, or -1 otherwise.</p>
</dd>
</dl>
<br>
<h3><a name="HDRSSRDESC">Format of the Session Description Returned</a></h3>
<table border width="80%">
<tr>
<th align="center" valign="bottom" colspan="2">Offset</th>
<th align="left" valign="bottom" rowspan="2">Type</th>
<th align="left" valign="bottom" rowspan="2">Field</th>
</tr>
<tr>
<th align="center" valign="bottom">Dec</th>
<th align="center" valign="bottom">Hex</th>
</tr>
<tr>
<td align="center" valign="top" width="10%">0</td>
<td align="center" valign="top" width="10%">0</td>
<td align="left" valign="top" width="20%">BINARY(4)</td>
<td align="left" valign="top" width="60%">Bytes returned</td>
</tr>
<tr>
<td align="center" valign="top">4</td>
<td align="center" valign="top">4</td>
<td align="left" valign="top">BINARY(4)</td>
<td align="left" valign="top">Bytes available</td>
</tr>
<tr>
<td align="center" valign="top">8</td>
<td align="center" valign="top">8</td>
<td align="left" valign="top">CHAR(8)</td>
<td align="left" valign="top">Reserved</td>
</tr>
<tr>
<td align="center" valign="top">16</td>
<td align="center" valign="top">10</td>
<td align="left" valign="top">CHAR(*)</td>
<td align="left" valign="top">Session description. The format of the remaining
data returned is shown in <a href="QsnCrtSsn.htm#HDRSSDESC">Format of the
Session Description</a>.</td>
</tr>
</table>
<br>
<br>
<h3>Error Messages</h3>
<table width="100%" cellpadding="3">
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<tr>
<th align="left" valign="top">Message ID</th>
<th align="left" valign="top">Error Message Text</th>
</tr>
<tr>
<td align="left" valign="top">CPF24B4 E</td>
<td valign="top">Severe error while addressing parameter list.</td>
</tr>
<tr>
<td align="left" valign="top">CPF3C24 E</td>
<td valign="top">Length of the receiver variable is not valid.</td>
</tr>
<tr>
<td align="left" valign="top">CPF3CF1 E</td>
<td valign="top">Error code parameter not valid.</td>
</tr>
<tr>
<td align="left" valign="top">CPF3CF2 E</td>
<td valign="top">Error(s) occurred during running of &amp;1 API.</td>
</tr>
<tr>
<td align="left" valign="top">CPFA31E E</td>
<td valign="top">Required parameter &amp;1 omitted.</td>
</tr>
<tr>
<td align="left" valign="top">CPFA3D6 E</td>
<td valign="top">Session handle is incorrect.</td>
</tr>
</table>
<br>
<hr>
API introduced: V2R3
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