245 lines
7.3 KiB
HTML
245 lines
7.3 KiB
HTML
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<!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>Suspend or Restore Display File (QWSSPRST) 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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<!-- QWSSPRST SCR450 A converted by B2H R4.1 (346) (CMS) by V2DCIJB -->
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<!-- at RCHVMW2 on 1 Oct 1999 at 16:10:01 -->
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<!-- Change History: -->
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<!-- YYMMDD USERID Change description -->
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<!-- File cleanup completed by v2cdijab -->
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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 type="text/javascript" language="Javascript" src="../rzahg/synch.js">
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</script>
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<h2>Suspend or Restore Display File (QWSSPRST) API</h2>
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<div class="box" style="width: 80%;">
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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%">Function requested</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%">Char(1)</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">Handle to suspended file</td>
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<td align="left" valign="top">I/O</td>
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<td align="left" valign="top">Binary(4)</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">Screen image option</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Char(1)</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="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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Default Public Authority: *USE<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 Suspend or Restore Display File (QWSSPRST) API gives the caller the
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ability to either suspend the active display file on the requester device or
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restore a suspended file to the requester device. The suspend function returns
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a handle to the suspended file. The restore function accepts a handle of a
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suspended file to be restored.</p>
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<p>The QWSSPRST API also allows the caller to have the screen image saved
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before the file is suspended. When the file is restored, this screen image also
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can be restored.</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>Function requested</strong></dt>
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<dd>INPUT; CHAR(1)
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<p>The function requested for the start of QWSSPRST. The following functions
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can be specified:</p>
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<table cellpadding="5">
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<!-- cols="5 95" -->
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<tr>
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<td align="left" valign="top"><em>0</em></td>
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<td align="left" valign="top">Suspend the active file on the requester device
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and return a corresponding handle to that file.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>1</em></td>
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<td align="left" valign="top">Restore a suspended file to the requester device.
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The handle indicates which file will be restored.</td>
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</tr>
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</table>
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<br>
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</dd>
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<dt><strong>Handle to suspended file</strong></dt>
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<dd>I/O; BINARY(4)
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<p>When suspending the active file (function 0), a handle to the suspended file
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will be returned in this parameter. When restoring a suspended file (function
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1), this parameter accepts the handle of the file to be restored.</p>
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</dd>
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<dt><strong>Screen image option</strong></dt>
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<dd>INPUT; CHAR(1)
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<p>When suspending the active file (function 0), this parameter gives the
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caller the option to save the current screen image. When restoring a suspended
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file (function 1), this parameter gives the caller the option to restore the
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saved screen image associated with the suspended file. If there is no saved
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screen image associated with the suspended file, this parameter is ignored when
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doing a restore.</p>
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<p>If the screen image is not saved and restored when the file is restored, it
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is assumed that the application that is using the file will redraw the screen
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image. The following options can be specified:</p>
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<table cellpadding="5">
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<!-- cols="5 95" -->
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<tr>
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<td align="left" valign="top"><em>0</em></td>
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<td align="left" valign="top">If suspending the active file (function 0), do
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not save the screen image. If restoring an active file (function 1), do not
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restore the screen image associated with the suspended file.</td>
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</tr>
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<tr>
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<td align="left" valign="top"><em>1</em></td>
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<td align="left" valign="top">If suspending the active file (function 0), save
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the current screen image. If restoring an active file (function 1), restore the
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screen image associated with the suspended file.</td>
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</tr>
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</table>
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<p>This parameter provides a function similar to that of the RSTDSP parameter
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of the CRTDSPF and CHGDSPF commands. Be aware that the command parameter causes
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the system to save and restore the screen image if RSTDSP(*YES) is used. The
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user of this API must request save the screen image at suspend time and restore
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the screen image at restore time to have the same function.</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>.</p>
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</dd>
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</dl>
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<br>
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<h3>Error Messages</h3>
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<table width="100%" cellpadding="5">
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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" width="15%">CPF24B4 E</td>
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<td align="left" valign="top" width="85%">Severe error while addressing
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parameter list.</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 align="left" 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">CPF3C36 E</td>
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<td align="left" valign="top">Number of parameters, &1, entered for this
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API was not valid.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF3C90 E</td>
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<td align="left" valign="top">Literal value cannot be changed.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF4738 E</td>
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<td align="left" valign="top">Parameter value not valid.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF5082 E</td>
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<td align="left" valign="top">Suspend request failed.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF5083 E</td>
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<td align="left" valign="top">Restore request failed.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9872 E</td>
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<td align="left" valign="top">Program or service program &1 in library
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&2 ended. Reason code &3.</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: V4R5
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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">
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<a href="#Top">Top</a> |
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<a href="wss1.htm">Work Station Support APIs</a> |
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<a href="aplist.htm">APIs by 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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