87 lines
4.8 KiB
HTML
87 lines
4.8 KiB
HTML
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<title>MSGCON (Message Constant) keyword for display files</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">MSGCON (Message Constant) keyword for display files</h1>
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<div><p>Use this field-level keyword to indicate the text for constant
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fields is contained in a message description.</p>
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<div class="section"><p>If the message description does
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not exist at DDS compile time, the file will not be created. If you change
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the message description, you need to create the file again if you want the
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display file to contain the updated message.</p>
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<div class="p">The format of the keyword
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is: <pre>MSGCON(length message-ID [library-name/]message-file-name)</pre>
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</div>
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<p>The
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length parameter specifies the maximum length of the message description.
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The length can be from 1 to 132 bytes. If the message description is less
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than the length specified, the remaining bytes are padded with blanks (hex
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40). If the message description is longer than the length specified, the message
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description is truncated to the specified length and a warning message appears.</p>
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<p>The
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message-ID parameter specifies the message description that contains the text
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to use as the value of the constant field.</p>
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<p>The message-file-name parameter
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identifies the message file that contains the message description. The library-name
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parameter is optional.</p>
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<p>The MSGCON keyword must be explicitly specified
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for the field. The MSGCON keyword cannot be used to initialize a named field.</p>
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<p>The
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DFT and MSGCON keywords are functionally equivalent. If you specify the DFT
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and MSGCON keywords for the same field, the MSGCON keyword is ignored and
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the file is not created.</p>
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<div class="p">The MSGCON keyword cannot be specified with
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any of the following keywords: <p>DATE<br />
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DFT<br />
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EDTCDE<br />
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EDTWRD<br />
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TIME</p>
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</div>
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<p>Option indicators are not valid for changing the value
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of the message line, but they are valid for conditioning the presence or absence
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of the message on the display.</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 MSGCON keyword.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A R RECORD1
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00020A 2 1MSGCON(10 MSG0001 MESSAGE/MSGF)
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A</pre>
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<p>MSG0001 in message file MSGF in library MESSAGES contains
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the message text.</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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