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209 lines
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<title>ERRMSG (Error Message) and ERRMSGID (Error Message Identifier) keywords
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for display files</title>
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<body id="rzakcmstdfems"><a name="rzakcmstdfems"><!-- --></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">ERRMSG (Error Message) and ERRMSGID (Error Message Identifier) keywords
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for display files</h1>
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<div><p>Use one of these field-level keywords to identify a message to
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be displayed on the message line and associated with this field.</p>
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<div class="section"><p>A warning message appears at file creation time if either of these
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keywords is specified on a record with the DSPMOD keyword. At run time, these
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keywords are ignored when the display mode changes.</p>
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<p>Option indicators
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are valid for these keywords.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">ERRMSG keyword</h4><div class="p">The format of the keyword is: <pre>ERRMSG('message-text' [response-indicator])</pre>
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</div>
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<p>For
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ERRMSG, the parameters specify the message text and, optionally, a response
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indicator. The message text is the message to be displayed. (The Help key
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is not supported. Message help is not displayed when the Help key is pressed.)</p>
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<p>If
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you specify a response indicator, it should be the same as the option indicator
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used to condition ERRMSG. On the input operation that follows the display
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of the error message, the <span class="keyword">i5/OS™</span> operating
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system turns off the indicator. If the response and the option indicators
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are the same, they are both turned off. One exception to this rule is if the
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response indicator is also specified for another keyword, such as CHANGE,
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CAnn, or CFnn. In that case, the on/off setting of the response indicator
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is based on the results of the function provided by the CHANGE or CFnn keyword.
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When a response indicator is specified, the first 50 characters of the message
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are also used as indicator text. Separate response indicator text is not valid
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for the ERRMSG keyword.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">ERRMSGID keyword</h4><div class="p">The format of the keyword is: <pre>ERRMSGID(msgid [library-name/]msg-file [response-indicator] [&msg-data])</pre>
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</div>
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<p>For ERRMSGID, the parameters specify:</p>
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<ul><li>The message identifier for the message to be displayed</li>
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<li>The message file and, optionally, the library</li>
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<li>Optionally, a response indicator</li>
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<li>Optionally, a msg-data field name</li>
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</ul>
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<p>The response indicator, if specified, should be the same as the option
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indicator used to condition the ERRMSGID keyword. On the subsequent input
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operation, after the display of the error message, the <span class="keyword">i5/OS</span> operating
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system turns off the indicator. However, if the response indicator is also
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specified on another keyword, such as CHANGE, CAnn, or CFnn, the on/off setting
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of the response indicator is based on the results of the function provided
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by the CHANGE, CAnn, or CFnn keyword.</p>
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<div class="note"><span class="notetitle">Note:</span> Indicator text cannot be specified
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on the ERRMSGID keyword.</div>
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<p>The msg-data field, if specified, contains
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the replacement text for the specified message. The field must exist in the
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record format and the field must be defined as a character field (data type
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A) with usage P. For more information about how replacement text works, refer
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to the Send Program Message (CL) command in the <a href="../rbam6/rbam6clmain.htm" target="_blank">Control language</a> topic.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Priority among selected keywords</h4><p>You can specify
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ERRMSG and ERRMSGID more than once for a single field. During program processing,
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use option indicators to select a particular message to be displayed.</p>
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<p>Only
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one message can be displayed at one time even if messages are in effect for
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several fields on the same output operation. The field whose message is displayed
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is the first field for which the program selected a message.</p>
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<p>If
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several keywords are in effect for one field on an output operation, the message
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to be displayed is the first of the following keywords:</p>
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<ul><li>ERRMSG (If more than one ERRMSG keyword is selected, the first one the
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program selects is displayed.)</li>
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<li>ERRMSGID (If more than one ERRMSGID keyword is selected, the first one
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the program selects is displayed.)</li>
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</ul>
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<p>A message field is displayed only if no error message keywords are
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also to be displayed.</p>
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<p>For a list of priorities including the SFLMSG
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and SFLMSGID keywords, see SFLMSG (Subfile Message) and SFLMSGID (Subfile
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Message Identifier) keywords for display files.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Conditions occurring during message display</h4><p>The
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displaying of a message using ERRMSG and ERRMSGID is similar to the displaying
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of messages by the <span class="keyword">i5/OS</span> operating
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system when field validation errors are detected.</p>
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<p>When a message is
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displayed because of either the ERRMSG or the ERRMSGID keyword, all fields
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on the display are kept, including the field the message is associated with.
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Except for option indicators, data in the output buffer is ignored (that is,
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any new data from the program is not sent to the display).</p>
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<p>The function
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keys valid following display of a message are:</p>
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<ul><li>Function keys specified at the file level</li>
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<li>Function keys specified for the record format for which a message is displayed,
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if selected when the message is displayed</li>
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</ul>
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<div class="p">When the message is displayed, the following conditions occur: <ul><li>For all errors: <ul><li>The message is highlighted.</li>
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<li>The cursor is blinked and the keyboard locked until the workstation user
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presses the Reset key.</li>
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</ul>
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</li>
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<li>For errors associated with input-capable fields: <ul><li>All fields in error are displayed with their images reversed. <p>If a
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field in error has both the underline (UL) display attribute and the highlight
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(HI) attribute or the underline (UL) attribute and COLOR(BLU, WHT, or YLW)
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specified, its image is not reversed.</p>
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</li>
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<li>The cursor is repositioned to the first displayed field that is in error.</li>
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</ul>
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</li>
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<li>For errors associated with output-only fields: <ul><li>The display attribute of the field is not changed.</li>
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<li>The cursor is not positioned to the field (it does not change position).</li>
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</ul>
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</li>
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</ul>
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<div class="note"><span class="notetitle">Note:</span> Some display attributes can cause fields on the IBM<sup>®</sup> Color Display
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Station to appear as color fields.</div>
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</div>
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</div>
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<div class="section" id="rzakcmstdfems__rrif"><a name="rzakcmstdfems__rrif"><!-- --></a><h4 class="sectiontitle">Restoration of reversed image fields</h4><div class="p">Fields
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are displayed with their images reversed because of system-detected typing
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errors or because of the ERRMSG or the ERRMSGID keyword. Generally, the <span class="keyword">i5/OS</span> program restores the image
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on the next I/O operation to the display, typically the next request from
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your program. The restoration is done before the requested function is performed.
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The following list shows exceptions where requests from your program do not
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cause the <span class="keyword">i5/OS</span> operating
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system to restore reversed image fields: <ul><li>An input request with cancel (canceling a read operation with NOWAIT)</li>
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<li>A close request when the KEEP keyword is in effect</li>
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<li>Any request to a subfile record (no data is sent to the device)</li>
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<li>An output operation to a subfile control record format that does not display
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the subfile control record or subfile records (for example, clearing, deleting,
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or initializing the subfile)</li>
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</ul>
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</div>
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</div>
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<div class="section"><h4 class="sectiontitle">Restrictions and notes</h4><ul><li>When an ERRMSG or ERRMSGID keyword is in effect, no processing other than
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the processing for these keywords is performed for the record. If neither
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keyword is in effect, the record is processed in the normal manner.</li>
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<li>When the RMVWDW keyword is active, error messages are not displayed.</li>
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<li>ERRMSG and ERRMSGID are valid for output-only, input-only, or input/output
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fields. These two keywords cannot be specified for a constant, hidden, program-to-system,
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or message field.</li>
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<li>For input or output capable fields, ERRMSG and ERRMSGID are in effect
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only if the record containing the field for which they are specified is already
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on the display.</li>
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<li>ERRMSG and ERRMSGID cannot be specified in a subfile record format (SFL
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keyword specified). To display error messages for a subfile, see SFLMSG (Subfile
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Message) and SFLMSGID (Subfile Message Identifier) keywords for display files.</li>
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<li>ERRMSG and ERRMSGID are ignored if the variable start line number (SLNO(*VAR)
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specified) has changed since the last output operation.</li>
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<li>If
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you specify ERRMSG or ERRMSGID, you should also specify RSTDSP(*YES) on the
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Create Display File (CRTDSPF) or Change Display File (CHGDSPF) command. Otherwise,
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data on the display can be lost if the file is suspended.</li>
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<li>On an output operation that causes the display modes to be changed, ERRMSG
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and ERRMSGID are ignored.</li>
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</ul>
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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 ERRMSG and ERRMSGID keywords.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A R CUSMST
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00020A :
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00030A :
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00040A :
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00050A QTYORD 10A I 5 3
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00060A 61 ERRMSG('No stock available' 61)
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00070A 62 ERRMSG('Partial stock available' +
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00080A 62)
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00090A 63 ERRMSGID(MSG2000 CONSOLEMSG 63 +
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00100A &RPLTXT);
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00110A RPLTXT 78A P
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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 class="relref"><strong>Related reference</strong><br />
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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>
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