You can use a function in any expression. For example, the AlarmActive() function returns TRUE (1) if any alarms are active, and FALSE (0) if no alarms are active. In the following text object, either "Alarms Active" or "No Alarms Active" is displayed, depending on the return value of the expression.
|
ON text when |
AlarmActive(0) |
|
ON Text |
"Alarms Active" |
|
OFF Text |
"No Alarms Active" |
Note: Functions return a value that
indicates the success of the function, or provides information on
an error that has occurred. In many cases (for example, when used
in a command) the return value can be ignored. You need to use the
parentheses () in the function name, even if the function uses no
arguments. Function names are not case-sensitive: PageNext(), pagenext() and PAGENEXT() call the same function.