What function to get the data out of the signed pgp data?

[Shawn Walker]

What function do I call to get the actual data from the signed pgp data? 
  As an example below, I want to get "some data, blah blah".

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

some data, blah blah
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)

iD8QXTxQ+fdFULKgg4OIsURAnIUDBQFGwLDtWFAKCn2cd6ifLgYA/7tHUgCdHJ2A
5ghcH3O7v7DUQONsQaY0apA=
=NATb
-----END PGP SIGNATURE-----

Regards,
Shawn