111 lines
6.1 KiB
HTML
111 lines
6.1 KiB
HTML
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<meta name="DC.Title" content="ERASEINP (Erase Input) keyword for display files" />
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<meta name="abstract" content="Use this record-level keyword with the OVERLAY keyword to erase unprotected input-capable fields already on the display. (Unprotected input-capable fields are fields for which the DSPATR(PR) keyword is not in effect.)" />
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<meta name="description" content="Use this record-level keyword with the OVERLAY keyword to erase unprotected input-capable fields already on the display. (Unprotected input-capable fields are fields for which the DSPATR(PR) keyword is not in effect.)" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2001, 2006" />
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<title>ERASEINP (Erase Input) keyword for display files</title>
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</head>
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<body id="rzakcmstdferinp"><a name="rzakcmstdferinp"><!-- --></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">ERASEINP (Erase Input) keyword for display files</h1>
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<div><p>Use this record-level keyword with the OVERLAY keyword to erase
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unprotected input-capable fields already on the display. (Unprotected input-capable
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fields are fields for which the DSPATR(PR) keyword is not in effect.)</p>
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<div class="section"><p>The fields are erased before the record format you are defining
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is displayed. Input-capable fields in the record format you are defining are
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not erased.</p>
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<p>See the <a href="../books/sc415715.pdf" target="_blank">Application Display Programming book</a><img src="wbpdf.gif" alt="Link to PDF" /> for information about how to
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use ERASEINP in files that are used in the System/36™ environment.</p>
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<div class="p">The format
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of the keyword is: <pre>ERASEINP[(*MDTON | *ALL)]</pre>
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</div>
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<p>To
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erase all input-capable fields already on the display, specify the *ALL parameter.
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To erase only input-capable fields that have their changed data tags (MDTs)
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set on, specify the *MDTON parameter. Specifying ERASEINP(*MDTON) or ERASEINP
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has the same effect as pressing the Erase Input key.</p>
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<p>The OVERLAY keyword
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must be specified whenever ERASEINP is specified.</p>
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<p>When the MDTOFF keyword
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is specified on the same record format as ERASEINP, two conditions can occur:</p>
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<ul><li>ERASEINP(*ALL) implies MDTOFF(*UNPR), unless the MDTOFF(*ALL) keyword
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is specified.</li>
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<li>If the ERASEINP or ERASEINP(*MDTON) is specified with MDTOFF(*ALL), the
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end effect is as if ERASEINP(*ALL) and MDTOFF(*ALL) are both specified.</li>
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</ul>
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<p>If the ERASEINP and PROTECT keywords are both in effect for an output
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operation, the <span class="keyword">i5/OS™</span> operating
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system first erases the input-capable fields specified on the ERASEINP parameter
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value, and then protects all input-capable fields on the display from input
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typing.</p>
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<p>ERASEINP reduces line traffic because record formats already
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displayed can be reused and do not need to be sent to the display again.</p>
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<p>A
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warning message appears at file creation time if the ERASEINP keyword is specified
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in a record with the DSPMOD keyword. At run time, the ERASEINP keyword is
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ignored when the display mode changes.</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 ERASEINP keyword.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A*
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00020A*
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00030A*
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00040A R RECORD1 OVERLAY
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00050A : ERASEINP
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00060A :
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00070A :
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00080A* (All changed input-capable fields on the screen are erased)
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00090A :
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00100A :
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00110A :
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00120A R RECORD2 OVERLAY
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00130A : ERASEINP(*ALL)
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00140A :
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00150A :
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00160A* (All unprotected input-capable fields on the screen are erased
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00170A* whether changed or not)
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00180A
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00190A
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00200A R RECORD3 OVERLAY
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00210A 32 ERASEINP(*MDTON)
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00220A N32 ERASEINP(*ALL)
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00230A FIELD1 5 I DSPATR(PR)
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00240A :
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00250A :
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00260A :
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00270A* (FIELD1 is never erased)
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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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