HELP clause
HELP clause is an optional clause that specifies the number of the help message that is associated with the DISPLAY ARRAY statement.
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Integer Expression |
A 4GL expression that returns a positive integer greater than 0 and less than 32,767. |
The message defined in this clause appears in the help message window when the user presses the Help key while the DISPLAY ARRAY statement is in effect, that is until the Accept key is not pressed. The Help key may be defined in the OPTIONS statement in the body of the program, by default CONTROL-W is the help key.
DISPLAY ARRAY my_arr TO scr_arr.*
HELP 12
The integer expression
identifies the message within the help file. The help file which contains
the help message must be specified in the HELP FILE clause of the OPTIONS
statement that precedes the DISPLAY ARRAY statement. If 4GL cannot open
the specified help file, if the indicated number is greater than 32,767,
or if the number is absent from the help file an error message will appear.
The qmsg command can be used in the command line environment to
create a compiled version of the help file.