114 lines
6.0 KiB
HTML
114 lines
6.0 KiB
HTML
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<meta name="DC.Title" content="GRDCLR (Grid Clear) keyword" />
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<meta name="abstract" content="Use this record-level keyword to define the rectangle on a screen in which all grid structures are cleared." />
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<title>GRDCLR (Grid Clear) keyword</title>
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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">GRDCLR (Grid Clear) keyword</h1>
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<div><p>Use this record-level keyword to define the rectangle on a screen
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in which all grid structures are cleared.</p>
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<div class="section"><div class="p">The format of the keyword is: <pre>GRDCLR[(*POS ([*DS3][*DS4]
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start row | &start-row-field
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start column | &start-column-field
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depth | &depth-field
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width | &width-field))]</pre>
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</div>
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<p>If no parameters are defined,
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GRDCLR keyword will clear all grid lines.</p>
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<p>The *POS parameter is an optional
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parameter. This parameter display size conditioning on the GRDCLR keyword.
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When coding *DS3 or *DS4 within the *POS parameter, you can have 2 different
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start row, start column, and length values depending on the display size being
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used. DSPSIZ keyword must be coded on the file level.</p>
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<p>If a field name
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is specified, the field must exist in the record format, data type S, usage
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P, length of 3, and zero decimal positions.</p>
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<p>Grid line support requires
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DBCS equipment. This equipment should have the capability of calling Japanese
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DOS.</p>
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<p>Option indicators are valid for this keyword.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Example</h4><p>The following example shows how to specify
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the GRDCLR keyword.</p>
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</div>
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<div class="example"> <pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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A DSPSIZ(*DS3 *DS4)
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A
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A R GRDREC1 GRDRCD
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A GRDCLR
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A
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A R GRDREC2 GRDRCD
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A 90 DSPMOD(*DS4)
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A
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A 95 GRDCLR((*POS (*DS3 4 4 10 60) +
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A (*DS4 4 4 10 120)))
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A
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A GRDLIN((*POS (*DS3 6 4 20) +
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A (*DS4 6 4 110)) (*TYPE LOWER) +
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A (*COLOR RED) (*LINTYP DBL))
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A
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A R GRDREC3 GRDRCD
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A
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A 95 GRDCLR((*POS (&SCROW &SCOL &DPTH &WDTH)));
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A
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A GRDLIN((*POS (6 4 20)) +
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A (*TYPE LOWER) +
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A (*COLOR RED) (*LINTYP DBL))
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A
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A SROW 3S 0P
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A SCOL 3S 0P
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A DPTH 3S 0P
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A WDTH 3S 0P
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A</pre>
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</div>
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<div class="section"><p>When the GRDREC1 record is written, the display screen is cleared
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of all grid structures.</p>
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<p>When the GRDREC2 record is written to a 24 by
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80 display or the DSPMOD keyword is turned off and option indicator 95 is
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turned on, a rectangle starting at row 4, column 4, depth of 10 rows, and
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width of 60 columns will be cleared. If the GRDREC2 record is written to a
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27 by 132 display and the DSPMOD keyword is turned on and option indicator
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95 is turned on, a rectangle starting a at row 4, column 4, depth of 10 rows,
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and width of 120 columns will be cleared. The GRDCLR keyword will be processed
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before the GRDLIN keyword so existing grids will be cleared before any new
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grids are drawn.</p>
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<p>When the GRDREC3 record is written and option indicator
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95 is turned on, the GRDCLR keyword is processed. The position and size of
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the rectangle for the GRDCLR keyword will be determined at runtime
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from the appropriate p-field. The GRDCLR keyword will be processed before
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the GRDLIN keyword so existing grids will be cleared before any new grids
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are drawn.</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="dspkwd.htm" title="Some DDS keywords should be avoided in DBCS data fields, and others used with caution.">Keyword considerations for display files that use DBCS</a></div>
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</div>
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</body>
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