imconfig.h

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// Add this to your imconfig.h
 
#include <SFML/Graphics/Color.hpp>
#include <SFML/System/Vector2.hpp>
 
#include <cstdint>
 
#include "imgui-SFML_export.h"
 
#define IM_VEC2_CLASS_EXTRA                                                                                            \
    template <typename T>                                                                                              \
    ImVec2(const sf::Vector2<T> &v)                                                                                    \
    {                                                                                                                  \
        x = static_cast<float>(v.x);                                                                                   \
        y = static_cast<float>(v.y);                                                                                   \
    }                                                                                                                  \
                                                                                                                       \
    template <typename T>                                                                                              \
    operator sf::Vector2<T>() const                                                                                    \
    {                                                                                                                  \
        return sf::Vector2<T>(static_cast<T>(x), static_cast<T>(y));                                                   \
    }
 
#define IM_VEC4_CLASS_EXTRA                                                                                            \
    ImVec4(const sf::Color &c) : x(c.r / 255.f), y(c.g / 255.f), z(c.b / 255.f), w(c.a / 255.f) {}                     \
    operator sf::Color() const                                                                                         \
    {                                                                                                                  \
        return sf::Color(static_cast<std::uint8_t>(x * 255.f), static_cast<std::uint8_t>(y * 255.f),                   \
            static_cast<std::uint8_t>(z * 255.f), static_cast<std::uint8_t>(w * 255.f));                               \
    }