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This statement displays online help. You determine the application, the function, the field, and the window on which the user requires help, and supply the values to the DISPLAY HELP function to display the appropriate help. If the required help has not been added, the function displays the next more general help in the order field-level help, window-level help, function-level help, and application-level help.
This statement has the following format:
&CONTROL NOSHRVARS
-EXEC $CACALL OPT=ACTION
ACTION=DISPLAY
CLASS=HELP
NAME=‘APPL=application id
[FUNC=function name]
[FIELD=field name]’
[PARMS=‘CROW=cursor row
CCOL=cursor column’
MODE={VIEW | BROWSE}]
A required parameter giving the identifier of the application for which help is to be displayed.
An optional parameter (required if either the FIELD=, CROW= or CCOL= keywords are specified) giving the name of the function for which help is to be displayed.
An optional parameter giving the name of the field for which help is to be displayed.
An optional parameter giving the cursor row position when help was requested. This defaults to the value of &CURSROW.
An optional parameter giving the cursor column position when help was requested. This defaults to the value of &CURSCOL.
This statement has no input variables.
This statement contains the following return variables:
System message. Contains the error message (for return code 8).
If a return code of 8 is set, then additional information is available as one of the following feedback codes, set in &$CAFDBK:
Processing error
Nesting level exceeded
The following statements display the field-level help for the ZPRSTATUS field for the UPDATE function in the application identified by the identifier ZPR if the help is available; otherwise, the next more general help is displayed:
&CONTROL NOSHRVARS -EXEC $CACALL OPT=ACTION + ACTION=DISPLAY + CLASS=HELP + NAME=‘APPL=ZPR + FUNC=UPDATE + FIELD=ZPRSTATUS’
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