getting out boolean value from PQgetValue function

Hello all,

I am using pg advisory locks in my application using libpq. When lock is
obtained, the result set contains boolean value for the row locked in result
set.

When i iterate over the result set, i am unable to get the return boolean
value in my code. The ptr returned by PQGetValue is valid, but contains
nothing. why is it so?

do i need to use ntohl to convert / see the proper binary value?

Please reply me regarding this.

thanks a lot,
Arunachalam.