The currentSession system variable references the current Internet session, to enable you to return the current session when you have created a subclass of the
The code fragment in the following example shows the use of the currentSession system variable.
// Show Exit and File menu options only if not running on the Web if currentSession <> null then menuFile.visible := false; miExit.visible := false; endif;
The currentSession system variable is set to null if there is no current Web session.