63 lines
2.4 KiB
HTML
63 lines
2.4 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>Using Dynamic Screen Manager APIs</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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<!-- Change History: -->
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<!-- YYMMDD USERID Change description -->
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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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<!-- 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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<!-- 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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<a name="Top_Of_Page"></a>
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<h2>Using Dynamic Screen Manager APIs</h2>
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<h3>Data Structures for DSM APIs</h3>
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<p>Data structures for use with ILE C, ILE COBOL, and ILE RPG/400<sup>(R)</sup>
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are available in the QSYSINC library in member QSNAPI for service program QSNAPI.</p>
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<br>
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<h3>Omitting Parameters with Associated Lengths</h3>
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<p>To omit a parameter with an associated length parameter, that length
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parameter should be omitted or specified as 0. If the length parameter is
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specified with a value greater than 0, the parameter with which it is
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associated is required.</p>
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<p>For example, to omit the user extension information on the low-level
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environment, specify either a NULL pointer by value, or 0 by reference for the
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length. The extension information structure is ignored. If the length is
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greater than 0, the extension information structure cannot be NULL. If it is,
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then a <samp>Required parameter omitted</samp> error is generated.</p>
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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="dsm.htm">Dynamic Screen Manager 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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