219 lines
13 KiB
HTML
219 lines
13 KiB
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<meta name="DC.Title" content="HLPARA (Help Area) keyword for display files" />
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<meta name="abstract" content="Use this help-specification-level keyword to define a rectangular area on the display." />
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<meta name="description" content="Use this help-specification-level keyword to define a rectangular area on the display." />
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<title>HLPARA (Help Area) keyword for display files</title>
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<body id="rzakcmstdfhpara"><a name="rzakcmstdfhpara"><!-- --></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">HLPARA (Help Area) keyword for display files</h1>
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<div><p>Use this help-specification-level keyword to define a rectangular
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area on the display.</p>
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<div class="section"><p>If the cursor is located in this area when you press the Help
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key, the online help information specified for that help (H) specification
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(on a HLPDOC, HLPPNLGRP, or HLPRCD keyword) is displayed.</p>
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<div class="p">The
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format of the keyword is: <pre>HLPARA(top-line left-position bottom-line right-position)
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<strong>or</strong>
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HLPARA(*RCD)
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<strong>or</strong>
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HLPARA(*NONE)
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<strong>or</strong>
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HLPARA(*FLD field-name [choice-number])
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<strong>or</strong>
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HLPARA(*CNST help-identifier)</pre>
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</div>
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<p>Observe the following rules
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when the line and position values are specified as parameters:</p>
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<ul><li>The line and position values must be within the display size.</li>
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<li>If you do not specify HLPARA for a secondary display size, the HLPARA
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of the primary display size is used if it is valid for the secondary display
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size. HLPARA(*NONE) is used if the HLPARA of the primary display size is not
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valid for the secondary display size.</li>
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<li>The top line must not exceed the bottom line and the left position must
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not exceed the right position.</li>
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<li>If you specify the SLNO(n) keyword on the record, the top-line and bottom-line
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values are adjusted, and any errors are diagnosed at creation time. If you
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specify the SLNO(*VAR) keyword on the record, the top line and bottom line
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are adjusted at processing time.</li>
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</ul>
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<p>The special value *RCD indicates that the help area is the area of
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the record containing the H specification. This area includes all display
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positions in every line occupied by the record.</p>
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<p>HLPARA(*RCD) is not
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valid for subfile control (SFLCTL) or user-defined (USRDFN) record formats.</p>
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<p>If
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you specify HLPARA(*RCD) on an H specification, the record format containing
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the H specification must contain at least one displayable field for the primary
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display size. Hidden (H in position 38), message (M in position 38), and program-to-system
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(P in position 38) fields and fields that specify a SFLPGMQ or SFLMSGKEY keyword
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are not displayable.</p>
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<p>The special value *NONE indicates that no help
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area is associated with the help information defined on this H specification.
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If the help information is defined using the UIM (HLPPNLGRP keyword), it is
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not displayed as item-specific help when the Help key is pressed, but might
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be displayed as extended help. If the help information is defined using DDS
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(HLPRCD keyword), it is not displayed as primary help when the Help key is
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pressed, but it might be displayed as secondary help when the Page Up or Page
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Down key is pressed on another help display. The *NONE value is not useful
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when the help information is defined in a document (HLPDOC keyword), since
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this information will never be displayed when the Help key is pressed.</p>
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<p>The
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special value *FLD indicates that the help area is the area of a field. If
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the field occupies only one line, the help area consists of the first and
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last characters of the line and all the characters in between.</p>
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<p>If the
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field wraps from one line to another, the help area consists of the entire
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length of all lines in the field. For example, if a field starts on line 3,
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position 4 and ends on line 5, position 10, the help area starts in line 3,
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position 1 and ends in line 5, position 80.</p>
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<p>If the field is a choice
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or a continued-entry field, the help area consists of the rectangular area
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occupied by the choice or continued-entry field.</p>
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<p>The field-name parameter
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specifies the name of the field for which the help area is defined. The field
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must exist in the record containing the H specification.</p>
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<p>If the choice-number
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parameter is specified, the help area is the area of the choice within the
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field specified. When a choice number is specified, the field name must be
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the name of a menu-bar field or a selection field, and the choice number you
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specify must also be specified on a MNUBARCHC or CHOICE keyword for that field.
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Valid values for the choice number are positive integers greater than 0 and
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less than 100.</p>
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<p>The *CNST special value indicates that the help area
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is the area of a constant field. This area includes the beginning and ending
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attribute bytes of the field.</p>
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<p>The help-id parameter is a number that
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identifies the constant field for which this help area is defined. The constant
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field must exist in the record containing the H specification, and it must
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have the HLPID keyword specified with the same help-identifier.</p>
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<p>You
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must specify at least one HLPARA keyword on an H specification. When you specify
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multiple HLPARA keywords for each H specification, you must use display size
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conditioning.</p>
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<div class="p">Help areas can overlap when multiple H specifications
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are specified on a record. When multiple H specifications are specified, the
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first H specification with both of the following characteristics is used:
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<ul><li>The help area specified on the HLPARA keyword contains the current cursor
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location.</li>
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<li>The option indicator on the HLPRCD, HLPPNLGRP, or HLPDOC keyword was in
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effect when the application record was written to the display.</li>
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</ul>
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</div>
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<div class="p">The following rules apply to H specifications: <ul><li>An H in position 17 denotes the start of an H specification. The H specification
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must be located in the DDS after the record-level keywords and before the
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first field in that record.</li>
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<li>Each H specification must have exactly one HLPRCD, HLPPNLGRP, or HLPDOC
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keyword, up to one HLPBDY or HLPEXCLD keyword, and at least one HLPARA keyword.</li>
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<li>The end of the H specification is denoted by another H in position 17
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or the first field.</li>
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<li>You cannot use H specifications in subfile (SFL keyword) record formats.
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H specifications are not allowed in subfile control formats associated with
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message subfiles (SFLMSGRCD keyword).</li>
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</ul>
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</div>
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<p>Option indicators are not valid for this keyword.</p>
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</div>
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<div class="example"><h4 class="sectiontitle">Example 1</h4><p>The following example shows how to specify
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the HLPARA keyword:</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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A HELP
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A HLPRCD(DFTHELP)
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A R RECORD1
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A H HLPARA(1 5 3 15)
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A HLPDOC(FLDHELP DOC1 FOLDER1)
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A
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A H HLPARA(*RCD)
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A HLPRCD(HELPRCD1)
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A
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A H HLPARA(*NONE)
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A HLPRCD(HELPRCD2)
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A FIELD1 10A 2 5
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A FIELD2 40A 10 10
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A</pre>
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<p>In this example, the HLPARA keyword on the first H specification
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indicates that the area from line 1, position 5 to line 3, position 15 is
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to be associated with the online help information document DOC1. If the cursor
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is located in this area when the Help key is pressed, document DOC1 is displayed
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beginning at label FLDHELP.</p>
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<p>The HLPARA keyword on the second H specification
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indicates that the area occupied by RECORD1 (lines 2 through 10) is to be
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associated with the online help information record HELPRCD1. If the cursor
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is located anywhere on lines 2 through 10 (outside the area defined by the
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first H specification) when the Help key is pressed, record HELPRCD1 is displayed.</p>
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<p>The
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HLPARA keyword on the third H specification indicates that no area is to be
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associated with the online help information HELPRCD2. HELPRCD2 can only be
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displayed by pressing the Page Up or Page Down key from a online help information
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display.</p>
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</div>
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<div class="example"><h4 class="sectiontitle">Example 2</h4><pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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A HELP HLPRCD(DFTHELP)
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A R RECORD
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A H HLPARA(*FLD F1 1)
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A HLPRCD(UNDOHLP HLPLIB/HLPFILE)
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A H HLPARA(*FLD F1 2)
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A HLPRCD(MARKHLP HLPLIB/HLPFILE)
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A H HLPARA(*FLD F1 3)
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A HLPRCD(COPYHLP HLPLIB/HLPFILE)
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A H HLPARA(*FLD F2)
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A HLPRCD(F2HLP HLPLIB/HLPFILE)
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A H HLPARA(*CNST 1)
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A HLPRCD(TITLEHLP HLPLIB/HLPFILE)
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A 1 37'Title' HLPID(1)
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A F1 2Y 0B 10 2SNGCHCFLD
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A CHOICE(1 'Choice 1')
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A 01 CHOICE(2 'Choice 2')
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A CHOICE(3 'Choice 3')
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A F2 10A B 10 30
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A</pre>
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<p>The HLPARA keyword on the first three
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H specifications indicates the areas occupied by Choice 1, Choice 2, and Choice
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3, which are to be associated with online help information. If Choice 2 is
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turned off so that Choice 3 moves up one line, the help area
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for Choice 3 automatically moves with the choice.</p>
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<p>The HLPARA keyword
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specified on the 4th H specification indicates the area of F2 to be associated
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with online help information. This area is line 10, from position 29 through
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position 40.</p>
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<p>The HLPARA keyword specified on the 5th H specification
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indicates the area of the constant title to be associated with online help
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information. This area is line 1, from position 36 through position 42.</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="rzakcmstdfhprtn.htm" title="Use this file- or record-level keyword to return control to your program when you press the Help key.">HLPRTN (Help Return) keyword for display files</a></div>
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<div><a href="rzakcmstdfhelp.htm" title="Use this file- or record-level keyword to enable the Help key.">HELP (Help) keyword for display files</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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