Getting to learn libpqxx

Hello everybody again,

I went out to investigate and try if I could master libpqxx, for libpq++ 
works not at all. Seeing it is discontinued, and people are encouraged to 
use libpqxx, I was so bold as to try that ;-)

Only to discover that there is hardly any documentation on how to access 
stuff... now I, myself am more a C-programmer, and I know C++ is pretty 
much different... it is really hard for me to think in classes and stuff, 
to think object-oriented...

So, now you know I am an earthling :P

I tried this kind of approach, the idea was to start out simple... so don't 
laugh at the attempt ...

#include <pqxx/connection.h>

int main(int argc, char *argv[])
{Connection *db;char uname[250]; // usernamechar passwd[250]; // passwordchar host[250]; //hostnamechar passwd[250];
//passwordchardbase[250]; //database namechar connstring[1264];... some output and input to get values for all these
chararrays...
 
connstring = "host=" >> host >> "database=" >> dbase >> "username=" >> 
uname >> "password=" >> passwd;db = new Connection(connstring,true);
if(db->is_open()){    cout << "Connection succesful!" << endl;    cout << db->Options();}else{    cout << "Something
wentwrong... oops" << endl;}delete db;return 0;
 
}

I get my first errors at "Connection *db" declaration... there is no 
Connection defined...
Can anyone point out how to reference the classes libpqxx has?

Also I was curious if my connstring was correctly built, but that is 
another subject I think... One other very important thing would be: how can 
I find out the error PostgreSQL will throw at me when I did something ugly? 
At least I can find out the problem, when I make one then...

Michiel