getting external IP

[maori]

hi guys

i'am trying to recive my external IP in a c++ application (learning)
so from what i have read because i'am behind a router easiest way would be to use a 3dr party ie webpage and grap the info from there ?

so i made this simple php code uploaded to my server and it does display my IP

<?php
$ip = $_SERVER['REMOTE_ADDR'];
print $ip;
?>

can anyone tell me how to pass this in a simple c++ app witch just has a edit box in it ie as soon as you start the app it display the IP i'am at a loss here i tried a few ways i found though google but they didnt work


TIA