The
Pff.load function loads the contents from an existing PFF file into a
Pff object. If supplying a string expression,
pff_filename, the properties from that PFF will be loaded. If supplying an
application_name (the name of your application, which generally ends with _FF), then the PFF used to run the current application will be loaded.
The function returns a logical value of 1 (true) if the PFF file exists and was successfully loaded and 0 (false) otherwise.