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]; // username
char passwd[250]; // password
char host[250]; //hostname
char passwd[250]; //password
char dbase[250]; //database name
char connstring[1264];
... some output and input to get values for all these char arrays...

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 went wrong... 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