The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
Typed variable not allowed in expression
Variables that are of user-defined types are not permitted
in expressions such as this, where X is a user-defined type:
CALL ALPHA((X))
You can pass elements of user-defined types as arguments.
For example:
CALL Alpha((X.FirstEl))