OpenSteamClient

// STL
#include <iostream>

// OpenSteamClient
#include <OpenSteamClient/SteamClient.hpp>
#include <OpenSteamClient/SteamUser.hpp>
#include <OpenSteamClient/SteamFriends.hpp>

using namespace std;

int main()
{
    Sc::SteamClient client;
    Sc::SteamUser user(client);
    Sc::SteamFriends friends(client);

    client.OnConnect->Add([&](Sc::ConnectEvent ev)
    {
        if(ev.result == Sc::EResult_OK)
        {
            cout << "connected\n";

            Sc::LoginDetails details;

            cout << "u/n: ";
            cin >> details.username;
            cout << "p/w: ";
            cin >> details.password;

            cout << "logging in...\n";
            user.LogIn(details);
        }
        else
        {

        }
    });

    client.OnDisconnect->Add([&](Sc::DisconnectEvent ev)
    {
        cout << "disconnected\n";
        // Disconnected.
    });

    user.OnLoggedIn->Add([&](Sc::LoggedInEvent ev)
    {
        if(ev.result == Sc::EResult_OK)
        {
            cout << "logged in\n";
            //friends.SetPersonaName("dajoh");
            //friends.SetPersonaState(Sc::EPersonaState_Online);
        }
        else
        {
            cout << "couldn't log in\n";
            // Couldn't log in.
        }
    });

    // Start connecting.
    cout << "connecting...\n";
    client.Connect();

    while(client.IsConnected())
    {
        // -1 is the timeout in ms for waiting for packets.
        // -1 means infinite.
        client.Run(-1);
    }

    return 0;
}