#include <SFML/Window.hpp>

int main()
{
    sf::Window window(sf::VideoMode(800, 600), "SFML Resolution Test");

    while (window.isOpen())
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed)
                window.close();
        }
    }

    return 0;
}


Compiled with:
g++ main.cpp -o test -lsfml-window -lsfml-system