Shows multiple monitors in use

SFML Screen Demo.cpp

// (C) Jan Haller, September 2015

#include <SFML/Window.hpp>
#include <iostream>


std::ostream& operator<< (std::ostream& stream, const sf::IntRect& rect)
{
    return stream << "(x: " << rect.left << ", y: " << rect.top
        << ", w: " << rect.width << ", h: " << rect.height << ")";
}

std::ostream& operator<< (std::ostream& stream, const sf::VideoMode& mode)
{
    return stream << mode.width << " x " << mode.height << " (" << mode.bitsPerPixel << " bpp)";
}

int main()
{
    std::cout << "Number of connected Screens: " << sf::Screen::count() << "\n";

    // display all supported fullscreen resolutions for all monitors
    for (unsigned int index = 0; index < sf::Screen::count(); ++index)
    {
        sf::Screen screen = sf::Screen::get(index);
        std::cout
            << "\n\n=================================================="
            << "\nScreen #" << index
            << "\n--------------------------------------------------"
            << "\nName:         " << screen.name.toAnsiString()
            << "\nPrimary:      " << std::boolalpha << screen.isPrimary
            << "\nFramerate:    " << screen.refreshRate << " Hz"
            << "\nDPI:          (x: " << screen.dpi.x << ", y: " << screen.dpi.y << ")"
            << "\nWorking area: " << screen.workingArea
            << "\nBounds:       " << screen.bounds << "\n";

        const std::vector<sf::VideoMode>& modes = screen.fullscreenModes;
        std::cout << "\nValid resolutions:";
        for (std::size_t i = 0; i < modes.size(); ++i)
            std::cout << "\n* " << modes[i];

        std::cout << "\n\nDesktop mode:\n* " << screen.desktopMode << std::endl;
    }

    sf::VideoMode videoMode(640, 480, 32, 1);
    sf::Window window(videoMode, "Multi Monitor Example!" /*, sf::Style::Fullscreen*/);

    while (window.isOpen())
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed
             || event.type == sf::Event::KeyReleased && event.key.code == sf::Keyboard::Escape)
                return 0;
        }

        window.display();
    }
}