177 lines
8.9 KiB
HTML
177 lines
8.9 KiB
HTML
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<meta name="DC.Title" content="ALTPAGEDWN/ALTPAGEUP (Alternative Page Down/Alternative Page Up) keyword for display files" />
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<meta name="abstract" content="Use these file-level keywords to assign command function (CF) keys as alternative Page Down/Page Up keys." />
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<title>ALTPAGEDWN/ALTPAGEUP (Alternative Page Down/Alternative Page Up) keyword
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for display files</title>
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<body id="rzakcmstdfalpud"><a name="rzakcmstdfalpud"><!-- --></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">ALTPAGEDWN/ALTPAGEUP (Alternative Page Down/Alternative Page Up) keyword
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for display files</h1>
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<div><p>Use these file-level keywords to assign command function (CF) keys
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as alternative Page Down/Page Up keys.</p>
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<div class="section"><p>When either the Page keys or the CF keys are pressed, the page
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function is called. The alternative Page Down and Page Up keys function only
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on the displays defined in the file with the ALTPAGEDWN or ALTPAGEUP keyword.
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They do not function on system displays, such as message help.</p>
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<div class="p">The format
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for each of these keywords is: <pre>ALTPAGEDWN[(CFnn)]
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ALTPAGEUP[(CFnn)]</pre>
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</div>
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<p>The valid values for the optional parameters
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are CF01 through CF24. If the parameter is not specified, CF08 is the default
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for ALTPAGEDWN and CF07 is the default for ALTPAGEUP.</p>
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<div class="p">The PAGEDOWN/PAGEUP
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keyword should also be specified if you want your program to handle any situation
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where the user has pressed a Page key or the alternative CFnn key and the <span class="keyword">i5/OS™</span> program cannot move the text
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lines on the display. If you do not specify the PAGEDOWN/PAGEUP keyword, a
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message indicating the key is not valid is displayed when either a Page key
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or the alternative CFnn key is pressed and the <span class="keyword">i5/OS</span> operating
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system cannot move the text lines on the display. See the PAGEDOWN/PAGEUP
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keywords topic for more information about how to specify PAGEDOWN/PAGEUP. <div class="note"><span class="notetitle">Note:</span> Throughout
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this keyword description, PAGEDOWN means the PAGEDOWN or the ROLLUP keyword.
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PAGEUP means the PAGEUP or the ROLLDOWN keyword.</div>
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</div>
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<p>If you specify
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a response indicator on the PAGEDOWN or PAGEUP keyword, the response indicator
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is set on and returned to your program when either the Page key or the alternative
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CFnn key is pressed 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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<p>If you specify option
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indicators on the PAGEDOWN or PAGEUP keyword, the same option indicators apply
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to the ALTPAGEDWN or ALTPAGEUP keyword, in the order given. That is, when
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the indicator condition is true, control will be returned to your program
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when either the Page key or the CFnn key is pressed 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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<p>The
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following keywords cannot be specified in a file with an ALTPAGEDWN keyword
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that has no parameter (CF08 default):</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="void" border="0" rules="none"><tbody><tr><td valign="top" width="50%"><p>ALTHELP(CA08)<br />
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ALTPAGEUP(CF08)<br />
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CA08<br />
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CF08<br />
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MNUCNL(CA08)<br />
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MNUBARSW(CA08)<br />
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MOUBTN(...CA08)</p>
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</td>
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<td valign="top" width="50%"><p>PSHBTNCHC(...CA08)<br />
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SFLDROP(CA08)<br />
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SFLDROP(CF08)<br />
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SFLENTER(CA08)<br />
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SFLENTER(CF08)<br />
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SFLFOLD (CA08)<br />
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SFLFOLD (CF08)</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<p>The following keywords cannot be specified in
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a file with an ALTPAGEUP keyword that has no parameter (CF07 default):</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="void" border="0" rules="none"><tbody><tr><td valign="top" width="50%"><p>ALTHELP(CA07)<br />
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ALTPAGEDWN(CF07)<br />
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CA07<br />
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CF07<br />
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MNUCNL(CA07)<br />
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MNUBARSW(CA07)<br />
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MOUBTN(...CA07)</p>
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</td>
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<td valign="top" width="50%"><p>PSHBTNCHC(...CA07)<br />
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SFLDROP(CA07)<br />
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SFLDROP(CF07)<br />
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SFLENTER(CA07)<br />
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SFLENTER(CF07)<br />
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SFLFOLD (CA07)<br />
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SFLFOLD (CF07)</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<p>Similarly, the following keywords cannot be specified
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in a file with ALTPAGEDWN(CF<var class="varname">nn</var>) or ALTPAGEUP(CF<var class="varname">nn</var>)
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(where <var class="varname">nn</var> is the same number):</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="void" border="0" rules="none"><tbody><tr><td valign="top" width="50%"><p>ALTHELP(CA<var class="varname">nn</var>)<br />
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CA<var class="varname">nn</var><br />
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CF<var class="varname">nn</var><br />
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MNUCNL(CA<var class="varname">nn</var>)<br />
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MNUBARSW(CA<var class="varname">nn</var>)<br />
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MOUBTN(...CA<var class="varname">nn</var>)<br />
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PSHBTNCHC(...CA<var class="varname">nn</var>)</p>
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</td>
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<td valign="top" width="50%"><p>SFLDROP(CA<var class="varname">nn</var>)<br />
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SFLDROP(CF<var class="varname">nn</var>)<br />
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SFLENTER(CA<var class="varname">nn</var>)<br />
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SFLENTER(CF<var class="varname">nn</var>)<br />
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SFLFOLD (CA<var class="varname">nn</var>)<br />
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SFLFOLD (CF<var class="varname">nn</var>)</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<p>Also, you cannot specify the same command function (CF) key on
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both the ALTPAGEDWN and the ALTPAGEUP keywords.</p>
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<p>You cannot specify RETKEY
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or RETCMDKEY in a file with the ALTPAGEDWN or ALTPAGEUP keyword.</p>
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<p>The
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ALTPAGEDWN and ALTPAGEUP keywords are allowed only in files containing a pageable
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area (either a subfile or a PAGEDOWN/PAGEUP keyword).</p>
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<p>Option indicators
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are not 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 ALTPAGEDWN and ALTPAGEUP keywords.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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A ALTPAGEUP
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A ALTPAGEDWN
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A R SUBFILE SFL
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A FIELD1 20A 5 5
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A R CONTROL SFLCTL(SUBFILE)
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A SFLSIZ(30)
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A SFLPAG(10)
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A SFLDSP
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A</pre>
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<p>The CF07 and CF08 keys are alternative page keys. During
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display of the subfile, if the user presses the CF07/CF08 key or a Page key,
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the <span class="keyword">i5/OS</span> operating system
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pages the subfile. If the <span class="keyword">i5/OS</span> operating
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system cannot page the subfile without going beyond the end or beyond the
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beginning, a message is displayed indicating the key is not valid at that
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time (PAGEDOWN/PAGEUP not specified).</p>
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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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