main.cpp

#include "imgui.h" // necessary for ImGui::*, imgui-SFML.h doesn't include imgui.h

#include "imgui-SFML.h" // for ImGui::SFML::* functions and SFML-specific overloads

#include <SFML/Graphics.hpp>

int main()
{
    sf::RenderWindow window(sf::VideoMode({640, 480}), "ImGui + SFML = <3");
    window.setFramerateLimit(60);
    if (!ImGui::SFML::Init(window))
        return -1;

    sf::CircleShape shape(100.f);
    shape.setFillColor(sf::Color::Green);

    sf::Clock deltaClock;
    while (window.isOpen())
    {
        while (const auto event = window.pollEvent())
        {
            ImGui::SFML::ProcessEvent(window, *event);

            if (event->is<sf::Event::Closed>())
            {
                window.close();
            }
        }

        ImGui::SFML::Update(window, deltaClock.restart());

        ImGui::ShowDemoWindow();

        ImGui::Begin("Hello, world!");
        ImGui::Button("Look at this pretty button");
        ImGui::End();

        window.clear();
        window.draw(shape);
        ImGui::SFML::Render(window);
        window.display();
    }

    ImGui::SFML::Shutdown();
}