Membership (object.member)
Separator for object members.
Syntax
setname.elementUsage
The period expression element specifies that its right-hand operand is a member of the set whose name is its left-hand operand.
This notation is used to reference RECORD members, object and class
methods, as well as module elements.
Example
IMPORT FGL customer_module
...
MAIN
  DEFINE rec RECORD
     n INTEGER,
     c CHAR(10)
  END RECORD
  DEFINE form ui.Form
  LET rec.n = 12345
  LET rec.c = "abcdef"
  ...
  CALL form.setElementHidden("page1")
  ...
  CALL customer_module.check(345)
  ...
END MAIN