160 lines
9.6 KiB
HTML
160 lines
9.6 KiB
HTML
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<meta name="DC.Title" content="CHCUNAVAIL (Choice Color/Display Attribute when Unavailable) keyword for display files" />
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<meta name="abstract" content="Use this field-level keyword to specify the color or display attributes to be used when displaying the unavailable choices in a selection field or a push button field." />
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<title>CHCUNAVAIL (Choice Color/Display Attribute when Unavailable) keyword
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for display files</title>
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</head>
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<body id="rzakcmstchcuna"><a name="rzakcmstchcuna"><!-- --></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">CHCUNAVAIL (Choice Color/Display Attribute when Unavailable) keyword
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for display files</h1>
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<div><p>Use this field-level keyword to specify the color or display attributes
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to be used when displaying the unavailable choices in a selection field or
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a push button field.</p>
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<div class="section"><p>This keyword can also be used to indicate unavailable choices
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in a subfile single or multiple choice selection list.</p>
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<div class="p">The format of
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the keyword is: <pre>CHCUNAVAIL([color] [display-attributes])</pre>
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</div>
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<p>One
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parameter must be specified.</p>
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<p>The color parameter indicates the color
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of choice text specified on the CHOICE keywords for the field on a color display
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station, when the choices are unavailable. It also indicates the color of
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unavailable entries in a single or multiple choice selection list displayed
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on a color display.</p>
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<p>The valid values for the color parameter are:</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="void" border="0" rules="none"><thead align="left"><tr><th valign="top" width="NaN%" class="firstcol" id="d0e50">Value</th>
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<th valign="top" width="NaN%" id="d0e52">Meaning</th>
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</tr>
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</thead>
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<tbody><tr><th valign="top" width="NaN%" class="firstcol" id="d0e56" headers="d0e50 ">BLU</th>
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<td valign="top" width="NaN%" headers="d0e56 d0e52 ">Blue</td>
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</tr>
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<tr><th valign="top" width="NaN%" class="firstcol" id="d0e61" headers="d0e50 ">GRN</th>
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<td valign="top" width="NaN%" headers="d0e61 d0e52 ">Green</td>
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</tr>
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<tr><th valign="top" width="NaN%" class="firstcol" id="d0e66" headers="d0e50 ">PNK</th>
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<td valign="top" width="NaN%" headers="d0e66 d0e52 ">Pink</td>
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</tr>
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<tr><th valign="top" width="NaN%" class="firstcol" id="d0e71" headers="d0e50 ">RED</th>
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<td valign="top" width="NaN%" headers="d0e71 d0e52 ">Red</td>
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</tr>
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<tr><th valign="top" width="NaN%" class="firstcol" id="d0e76" headers="d0e50 ">TRQ</th>
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<td valign="top" width="NaN%" headers="d0e76 d0e52 ">Turquoise</td>
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</tr>
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<tr><th valign="top" width="NaN%" class="firstcol" id="d0e81" headers="d0e50 ">YLW</th>
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<td valign="top" width="NaN%" headers="d0e81 d0e52 ">Yellow</td>
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</tr>
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<tr><th valign="top" width="NaN%" class="firstcol" id="d0e86" headers="d0e50 ">WHT</th>
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<td valign="top" width="NaN%" headers="d0e86 d0e52 ">White</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>If the color parameter is not specified, the default color for
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unavailable choices in a selection field is blue. This parameter is ignored
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on a monochrome display.</p>
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<p>The display-attribute parameter
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indicates the display attributes of the choice text specified on the CHOICE
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or PSHBTNCHC keyword for the field. The parameter is specified as an expression
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of the form (<var class="varname">*DSPATR value1 <value2 <value3...>></var>).</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="void" border="0" rules="none"><thead align="left"><tr><th valign="top" width="NaN%" class="firstcol" id="d0e103">Value</th>
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<th valign="top" width="NaN%" id="d0e105">Meaning</th>
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</tr>
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</thead>
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<tbody><tr><th valign="top" width="NaN%" class="firstcol" id="d0e109" headers="d0e103 ">BL</th>
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<td valign="top" width="NaN%" headers="d0e109 d0e105 ">Blink</td>
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</tr>
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<tr><th valign="top" width="NaN%" class="firstcol" id="d0e114" headers="d0e103 ">CS</th>
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<td valign="top" width="NaN%" headers="d0e114 d0e105 ">Column separator</td>
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</tr>
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<tr><th valign="top" width="NaN%" class="firstcol" id="d0e119" headers="d0e103 ">HI</th>
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<td valign="top" width="NaN%" headers="d0e119 d0e105 ">High intensity</td>
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</tr>
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<tr><th valign="top" width="NaN%" class="firstcol" id="d0e124" headers="d0e103 ">ND</th>
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<td valign="top" width="NaN%" headers="d0e124 d0e105 ">Nondisplay</td>
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</tr>
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<tr><th valign="top" width="NaN%" class="firstcol" id="d0e129" headers="d0e103 ">RI</th>
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<td valign="top" width="NaN%" headers="d0e129 d0e105 ">Reverse image</td>
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</tr>
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<tr><th valign="top" width="NaN%" class="firstcol" id="d0e134" headers="d0e103 ">UL</th>
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<td valign="top" width="NaN%" headers="d0e134 d0e105 ">Underline</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 default display attribute for unavailable choices in a selection
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field on monochrome display stations is normal (or low) intensity. Also, the
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first character of an unavailable choice on a monochrome display station is
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overwritten with an asterisk (*).</p>
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<div class="note"><span class="notetitle">Note:</span> Display attributes CS, HI, and
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BL can cause fields on 5292, 3179, 3197 Models C1 and C2, 3486, 3487 Model
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HC, and 3488<a name="fnsrc_1" href="#fntarg_1"><sup>1</sup></a> workstations to appear as color fields. Separator lines do not
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appear when display attributes HI, RI, and UL are used.</div>
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<p>When used
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on a field specification, this keyword is allowed only if there are also one
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or more CHOICE or PSHBTNCHC keywords. When used on a subfile control record,
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this keyword is allowed only if the SFLSNGCHC or SFLMLTCHC keyword is also
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used on the subfile control record.</p>
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<p>Option indicators are valid for
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this keyword.</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 CHCUNAVAIL keyword:</p>
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<pre>|....+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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A
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A R RECORD
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A F1 2Y 0B 2 5SNGCHCFLD CHECK(ER)
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A CHOICE(1 'Choice number 1')
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A CHOICE(2 'Choice number 2')
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A CHCCTL(1 &CHCCTL1);
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A CHCCTL(2 &CHCCTL2);
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A CHCUNAVAIL((*COLOR TRQ))
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A :
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A :
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A</pre>
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<p>In this example, the unavailable choices for the selection
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field are displayed in turquoise on a color display.</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 class="relref"><strong>Related reference</strong><br />
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<div><a href="rzakcmstdfsflml.htm" title="Use this record-level keyword to define a subfile as a multiple-choice-selection list. A multiple-choice-selection list is a scrollable group of items from which the user can select multiple items.">SFLMLTCHC (Subfile Multiple Choice Selection List) keyword for display files</a></div>
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<div><a href="rzakcmstdfcolor.htm" title="Use this keyword to specify the color of a field on a color display.">COLOR (Color) keyword for display files</a></div>
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</div>
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</div><div class="p"><a name="fntarg_1" href="#fnsrc_1"><sup>1</sup></a> Dependent on the monitor attached to the display
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device.</div>
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</body>
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