How to get an alias definition

How to get an alias definition ?

I created a alias by using the BDE

For example "ALIAS_ONE"  is equivalent to "C:\DIR1\DIR11\"
and is used for Paradox tables.

In a Delphi application, at run-time, I need to know the path declared in the alias definition ("C:\DIR1\DIR11\" in our example).

What is the BDE function which returns this ?

Thanks for your help.

Bruno.