89 lines
3.6 KiB
HTML
89 lines
3.6 KiB
HTML
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
||
|
|
<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
|
||
|
|
<title>Session Services APIs</title>
|
||
|
|
<!-- Begin Header Records ========================================= -->
|
||
|
|
<!-- All rights reserved. Licensed Materials Property of IBM -->
|
||
|
|
<!-- US Government Users Restricted Rights -->
|
||
|
|
<!-- Use, duplication or disclosure restricted by -->
|
||
|
|
<!-- GSA ADP Schedule Contract with IBM Corp. -->
|
||
|
|
<!-- Change History: -->
|
||
|
|
<!-- YYMMDD USERID Change description -->
|
||
|
|
<!-- DSMMST1 SCRIPT A converted by B2H R4.1 (346) (CMS) by V2KEA304 -->
|
||
|
|
<!-- at RCHVMW2 on 29 Jan 1999 at 16:05:09 -->
|
||
|
|
<!-- File Edited November 2001 -->
|
||
|
|
<!-- End Header Records -->
|
||
|
|
<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<!-- Java sync-link -->
|
||
|
|
<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
|
||
|
|
</script>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
<h2>Session Services APIs</h2>
|
||
|
|
|
||
|
|
<p>The session services APIs provide a general scrolling I/O interface. They
|
||
|
|
can be used to build a standard input-line scrolling interface or an interface
|
||
|
|
that has an output-only scroll area (called a <strong>scroller</strong>) in a
|
||
|
|
window. Sessions are special cases of windows as supported by the window
|
||
|
|
services. A session is defined using a session, a window, and a low-level
|
||
|
|
environment description. The window and low-level environment descriptions are
|
||
|
|
the same as those used to define a window directly with the window services
|
||
|
|
APIs. The session description defines the structure of the session. The
|
||
|
|
structure includes the coordinates of the scrolling portion, the length of the
|
||
|
|
input line, the amount to roll by, and so on. A session is implemented as a
|
||
|
|
window, where the window user data pointer describes the session itself. Thus,
|
||
|
|
a session can be manipulated through the window and low-level interfaces by
|
||
|
|
passing the session handler or through the session interfaces. This
|
||
|
|
implementation is similar to the concept of inheritance in object-oriented
|
||
|
|
programming languages.</p>
|
||
|
|
|
||
|
|
<p>Sessions are similar in concept to subfiles and can be used for any
|
||
|
|
application that requires a scrolling line interface. The session services APIs
|
||
|
|
are divided into the following functional groups:</p>
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
<li><a href="dsm3a.htm">Session manipulation and query APIs</a> allow you
|
||
|
|
to create, query, and manipulate sessions.<br>
|
||
|
|
<br>
|
||
|
|
</li>
|
||
|
|
|
||
|
|
<li><a href="dsm3b.htm">Session I/O APIs</a> allow you to perform input and
|
||
|
|
output operations to sessions.</li>
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
<p>For additional information, select one of the following:</p>
|
||
|
|
|
||
|
|
<ul>
|
||
|
|
<li><a href="dsm3c.htm#Header_594">Session Details</a></li>
|
||
|
|
<li><a href="dsm3c.htm#Header_595">Line Mode and Character Mode I/O</a></li>
|
||
|
|
<li><a href="dsm3c.htm#HDRCMDKEY">Command Key Action Routines</a></li>
|
||
|
|
<li><a href="dsm3c.htm#Header_597">Action Routine Parameters</a></li>
|
||
|
|
<li><a href="dsm3c.htm#HDRACTPOS">Active Position</a></li>
|
||
|
|
<li><a href="dsm3c.htm#HDREBCDICC">EBCDIC Display Control Characters</a></li>
|
||
|
|
<li><a href="dsm3c.htm#HDRSSDBCS">DBCS Considerations</a></li>
|
||
|
|
</ul>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
|
||
|
|
<hr>
|
||
|
|
<center>
|
||
|
|
<table cellpadding="2" cellspacing="2">
|
||
|
|
<tr align="center">
|
||
|
|
<td valign="middle" align="center">
|
||
|
|
<a href="#Top_Of_Page">Top</a> |
|
||
|
|
<a href="dsm.htm">Dynamic Screen Manager APIs</a> |
|
||
|
|
<a href="aplist.htm">APIs by category</a></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</center>
|
||
|
|
|
||
|
|
<br>
|
||
|
|
</body>
|
||
|
|
</html>
|
||
|
|
|