printing public key from the certificate using crypto++

[surya t]

void GetPublicKeyFromCert(CryptoPP::BufferedTransformation & certin,
CryptoPP::BufferedTransformation & keyout)

In order to retrieve the public key , I have used above function
which is defined in website

http://www.cryptopp.com/wiki/X.509

But I am unable to print the public key. So how to convert
BufferTransformation object to Human readable format or hex format.

[Jeffrey Walton]

http://www.cryptopp.com/docs/ref/class_hex_encoder.html
http://www.cryptopp.com/wiki/HexEncoder