227 lines
7.7 KiB
HTML
227 lines
7.7 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>Presystem Request Program Exit Program</title>
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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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<script type="text/javascript" language="Javascript" src="../rzahg/synch.js">
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</script>
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<h2>Presystem Request Program Exit Program</h2>
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<div class="box" style="width: 70%;">
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<br>
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Required Parameter:<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="55%">System Request menu display flag</td>
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<td align="left" valign="top" width="15%">I/O</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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Optional Parameter:<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%">2</td>
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<td align="left" valign="top" width="55%">System Request user option data</td>
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<td align="left" valign="top" width="15%">I/O</td>
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<td align="left" valign="top" width="20%">CHAR(128)</td>
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<td align="left" valign="top"></td>
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</tr>
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</table>
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<br>
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Exit Point Name: QIBM_QWT_SYSREQPGMS<br>
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<!-- iddvc RMBR -->
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<br>
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Exit Point Format Name: SREQ0100<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The Presystem Request Program exit program is called when the user presses
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the System Request key.</p>
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<p>When a user presses the System Request key, the operating system calls the
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user-written exit program through the registration facility. There are two
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parameters used for input and output. After the exit programs from the
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registration facility are called, the System Request menu is called based on
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the value that is returned in the System Request menu display flag. This is the
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first parameter. The second parameter contains the data the user entered on the
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System Request user option line. When the user presses the the System Request
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key an input line is displayed at the bottom of the screen. This allows the
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user to enter one of the option numbers and relevant parameter data for any of
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the options for the Systems Request menu. All data keyed into the input line,
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including option numbers, will be passed to the exit programs. This data will
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be passed and received from each of the exit programs called. This allows one
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program to modify the data and pass it to the next program called. This data
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will be passed to the user exit program in the CCSID of the job. The data that
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the last Presystem Request program returns will the data that is passed to the
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System Request menu. Normal error checking will be performed on the data at
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that time.</p>
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<p>This exit point supports eight exit programs. (For information about adding
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an exit program to an exit point, see the <a href="reg1.htm">Registration
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Facility APIs</a>.)</p>
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<p>Before any of the exit programs in the registration facility are called, the
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user profile for each user intending to use this function needs to be updated.
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The Set Profile Exit Program (QWTSETPX) API needs to be called. This API will
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set for the requested user profile which of the eight allowed exit programs to
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call. The user can have from zero to all eight possible exit programs called.
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No exit programs will be called until the QWTSETPX API is called to set the
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values in the user profile. To display which exit programs will be called for a
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particular user, the Retrieve Profile Exit Program (QWTRTVPX) API can be
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called. (For more information about both of these APIs, see the <a href=
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"wm1.htm">Work Management APIs</a>.)</p>
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<p><strong>Notes:</strong></p>
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<ol>
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<li>It is recommended that a command line is not displayed from a presystem
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request exit program. There may be functions that do not work as expected when
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issued from this type of command line.<br><br></li>
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<li>The Presystem Request exit point ignores any error messages that are sent
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from the exit programs. If multiple exit program are registered, all programs
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will be called regardless of errors that may occur.<br><br></li>
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<li>The user-registered exit program will be called with only the first
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parameter unless the Pass user option data flag in the Program data section is
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turned on. If this flag is turned on, the user exit program will be called with
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both of the parameters.<br><br></li>
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<li>It is recommended that the Presystem Request exit program exist in a
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library in the system auxiliary storage pool (ASP) or in a basic user ASP. It
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might not be found if it exists in a library in an independent ASP.</li>
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</ol>
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<br>
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<h3>Authorities and Locks</h3>
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<dl>
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<dt><em>User Profile Authority</em></dt>
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<dd>All object (*ALLOBJ) and security administrator (*SECADM)
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special authorities are needed
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to add exit programs to the registration facility
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or to remove exit programs from the registration facility.</dd>
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</dl>
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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>System Request menu display flag</strong></dt>
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<dd>I/O; BINARY(4)
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<p>Whether to display the System Request menu after the exit programs from the
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registration facility have been called. The default value of 1 means that the
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menu will be displayed. Any other value will mean not to display the menu. This
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value will be passed to all the exit programs. The value returned from the last
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program called is the value that will be used to determine if the menu should
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be displayed.</p>
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</dd>
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</dl>
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<br>
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<h3>Optional Parameter Group</h3>
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<dl>
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<dt><strong>System Request user option data</strong></dt>
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<dd>I/O; CHAR(128)
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<p>The user-entered data from the System Request user option field. The default
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is all blanks.</p>
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</dd>
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</dl>
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<br>
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<h3>Program Data</h3>
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<p>When you register the exit program, the following is required to enable
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passing of the System Request option data for the program data field.</p>
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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%">CHAR(1)</td>
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<td align="left" valign="top" width="60%">Pass user option data flag</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><a name="HDRSREQD0">Field Descriptions</a></h3>
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<p><strong>Pass user option data flag.</strong> This flag determines how many
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parameters need to be passed on the call to the user exit program. If the flag
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is set to a 1, then both of the parameters will be passed on the call to the
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exit program. If the flag is any other value, only the first parameter will be
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passed.</p>
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<hr>
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Exit program introduced: V3R7
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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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"wm1.htm">Work Management 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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