90 lines
5.9 KiB
HTML
90 lines
5.9 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<meta name="DC.Title" content="ROLLUP/ROLLDOWN (Roll Up/Roll Down) keywords for display files" />
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<meta name="abstract" content="Use these file- or record-level keywords to specify that you want to use your program to handle any situation where the workstation user has pressed the Roll Up or Roll Down keys and the i5/OS operating system cannot move the text lines on the display." />
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<meta name="description" content="Use these file- or record-level keywords to specify that you want to use your program to handle any situation where the workstation user has pressed the Roll Up or Roll Down keys and the i5/OS operating system cannot move the text lines on the display." />
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<meta name="keywords" content="ROLLUP/ROLLDOWN (Roll up/Roll down) keyword" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2001, 2006" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<title>ROLLUP/ROLLDOWN (Roll Up/Roll Down) keywords for display files</title>
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</head>
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<body id="rzakcmstdfrolls"><a name="rzakcmstdfrolls"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">ROLLUP/ROLLDOWN (Roll Up/Roll Down) keywords for display files</h1>
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<div><p>Use these file- or record-level keywords to specify that you want
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to use your program to handle any situation where the workstation user has
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pressed the Roll Up or Roll Down keys and the <span class="keyword">i5/OS™</span> operating
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system cannot move the text lines on the display. </p>
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<div class="section"><p>If this situation occurs and you have not specified this keyword
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(whichever one is appropriate), the <span class="keyword">i5/OS</span> operating
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system sends an error message indicating that the key is not valid at that
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time.</p>
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<p>See the <a href="s36env.htm">System/36 environment considerations for display files</a> topic for special considerations
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when specifying the ROLLUP/ROLLDOWN keywords in files that are used in the System/36™ environment.</p>
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<div class="p">The
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format for each of these keywords is: <pre>ROLLUP[(response-indicator ['text'])]
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ROLLDOWN[(response-indicator ['text'])]</pre>
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</div>
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<p>You can specify
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a response indicator with these keywords. If you do, and the appropriate paging
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key is pressed, the <span class="keyword">i5/OS</span> operating
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system sets on the specified response indicator within the input record and
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returns control to your program after it processes the input data. If you
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do not specify a response indicator and the specified paging key is pressed,
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the <span class="keyword">i5/OS</span> operating system
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performs normal input record processing.</p>
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<p>The optional text is included
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on the computer printout created at program compilation to explain the intended
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use of the indicator. This text functions only as a comment in the file or
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program. The single quotation marks are required. If you specify more than
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50 characters between the single quotation marks, the text is truncated to
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50 characters on the program computer printout.</p>
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<p>These keys cause data
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to be returned from the display device to your program (similar to command
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function (CF) and Enter keys).</p>
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<p>The PAGEDOWN keyword cannot be specified
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with ROLLUP. The PAGEUP keyword cannot be specified with ROLLDOWN.</p>
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<div class="note"><span class="notetitle">Note:</span> The
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ROLLUP keyword is the same as the PAGEDOWN keyword. The ROLLDOWN keyword is
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the same as the PAGEUP keyword. Roll is the same as page.</div>
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<p>If the <span class="keyword">i5/OS</span> operating system is performing
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the paging function for subfiles (SFLSIZ value does not equal SFLPAG value),
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you do not need to specify these keywords. For a description of what happens
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when ROLLUP and ROLLDOWN are specified for a subfile, see the <a href="rzakcmstdfsfrol.htm">SFLROLVAL (Subfile Roll Value) keyword for display files</a> topic.</p>
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<p>Option
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indicators are valid for these keywords.</p>
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</div>
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<div class="example"><h4 class="sectiontitle">Example</h4><p>The following example shows how to specify
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the ROLLUP and ROLLDOWN keywords.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A N64 ROLLDOWN(52 'Roll Down')
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A ROLLUP(61)
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A</pre>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzakcmstkeyent.htm" title="You type the keyword entries that define display files in positions 45 through 80 (functions).">DDS keyword entries for display files (positions 45 through 80)</a></div>
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</div>
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</div>
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</body>
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</html>
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