59 lines
2.5 KiB
COBOL
59 lines
2.5 KiB
COBOL
$set ans85 noosvs mf
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*****************************************************************
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* *
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* (C) Micro Focus Ltd. 1989 *
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* *
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* SSCNTRL.CBL *
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* *
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* Demonstration of the use of dynamic attributes in screen *
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* section. This example shows how to use the CONTROL clause *
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* in a screen section to indicate invalid fields after an *
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* accept statement. Monochrome terminal users can also see *
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* the use of attribute strings to set reverse video; color *
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* terminal users can "uncomment" the line changing colors to *
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* view the use of attribute strings to set colors. *
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*****************************************************************
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working-storage section.
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01 field1 pic x(4) value spaces.
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01 field2 pic x(4) value spaces.
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01 field3 pic x(4) value spaces.
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01 attr-string pic X(50).
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78 ws-reverse-video value 'reverse-video'.
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78 ws-highlight value 'highlight'.
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78 ws-blink value 'blink'.
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78 ws-red-on-white value 'foreground-color 4 background-color 7'.
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screen section.
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01 blank-screen blank screen.
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01 screen-1.
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05 line 3 col 15
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value 'Fill the fields with data'.
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05 line 6 col 20 value 'Field 1 : '.
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05 pic xxxx using field1 auto-skip full required.
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05 line 8 col 20 value 'Field 2 : '.
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05 pic xxxx using field2
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control attr-string auto-skip full required.
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05 line 10 col 20 value 'Field 3 : '.
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05 pic xxxx using field3 required.
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01 error-screen.
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05 line 24 col 10
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value 'Field 2 must contain ''9999'' to terminate'.
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procedure division.
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display blank-screen
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perform until field2 = '9999'
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display screen-1
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accept screen-1
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if field2 not = '9999'
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display error-screen
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******* move ws-red-on-white to attr-string
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move ws-reverse-video to attr-string
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end-if
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end-perform.
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stop run.
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