#include <iostream>

#define GLEW_STATIC
#include <GL/glew.h>

#include <GLFW/glfw3.h>

const GLint WIDTH = 800, HEIGHT = 600;

int main()
{
    glfwInit();

    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
    glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);

    GLFWwindow* window = glfwCreateWindow(WIDTH, HEIGHT, "Learn OpenGL", nullptr, nullptr);

    int screenWidth, screenHeight;
    glfwGetFramebufferSize(window, &screenWidth, &screenHeight);

    if(nullptr == window)
    {
        std::cout << "Failed to create GLFW window" << 'n';
        glfwTerminate();

        return -1;
    }

    glewExperimental = GL_TRUE;
    GLenum err=glewInit();

    if(err != glewInit())
    {
        std::cout << "Failed to initialize GLEW" << 'n';

        return -1;
    }

    glViewport(0, 0, screenWidth, screenHeight);

    while(!glfwWindowShouldClose(window))
    {
        glfwPollEvents();

        glClearColor(0.2f, 0.2f, 0.9f, 0.5f);
        glClear(GL_COLOR_BUFFER_BIT);

        glfwSwapBuffers(window);
    }

    glfwTerminate();

    return 0;
}

glfwMakeContextCurrent(window);

wlgMakeCurrent()
glClearColor( R, G, B, 1.0 ); //: <--Make sure alpha isn't transparent.
glClear( GL_COLOR_BUFFER_BIT )
SwapBuffers( your_window_HDC ); //: from GDI32.dll