basic SFML window with opengl context

sfml_opengl_window.cpp

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

#include <iostream>

constexpr float R = 0.2f;
constexpr float G = 0.4f;
constexpr float B = 0.9f;
constexpr float A = 1.0f;

void sfmlContext(int width, int height, const char *title)
{
    std::cout << "SFML Window Creation\n";

    sf::ContextSettings settings;
    settings.depthBits = 24;
    settings.stencilBits = 8;
    settings.antialiasingLevel = 2;
    settings.majorVersion = 3;
    settings.minorVersion = 3;
    settings.attributeFlags = sf::ContextSettings::Core;

    sf::Window window(sf::VideoMode(width, height), title, sf::Style::Close, settings);

    bool running = true;
    while (running)
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            switch (event.type)
            {
            case sf::Event::Closed:
                running = false;
                break;
            case sf::Event::KeyPressed:
                if (event.key.code == sf::Keyboard::Escape)
                    running = false;
                break;
            default:
                break;
            }
        }

        glClearColor(R, G, B, A);
        glClear(GL_COLOR_BUFFER_BIT);

        window.display();
    }
}

int main(int argc, char *argv[])
{
    int width = 640;
    int height = 480;
    const char *title = "Hello World!";
    
    sfmlContext(width, height, title);
    
    return 0;
}