px_open_fp -- Open paradox database
( resource pxdoc, resource file )
Open an existing paradox database file. The actual file has to be opened
before with fopen(). This function can also be used to
open primary index files and tread them like a paradox database. This is
supported for those who would like to investigate a primary index. It
cannot be used to accelerate access to a database file.
Resource identifier of the paradox database
as returned by px_new().
file is the return value from
fopen() with the actual database file as parameter.
Make sure the database is writable if you plan to update or insert
Returns TRUE on success or FALSE on failure.