The HTML documentation contains both tutorials, guides for different topics and an API reference.

The FAQ answers many commonly asked questions about the design, implementation and use of GLFW.


GLFW is under the zlib/libpng license, which permits modification, distribution and use in closed source software.

Example code

Below is a short example of setting up a window and OpenGL context with GLFW. There are many more functions than those used here. For a quick introduction to GLFW, see Getting started in the HTML documentation.

#include <GLFW/glfw3.h>

int main(void)
    GLFWwindow* window;

    /* Initialize the library */
    if (!glfwInit())
        return -1;

    /* Create a windowed mode window and its OpenGL context */
    window = glfwCreateWindow(640, 480, "Hello World", NULL, NULL);
    if (!window)
        return -1;

    /* Make the window's context current */

    /* Loop until the user closes the window */
    while (!glfwWindowShouldClose(window))
        /* Render here */

        /* Swap front and back buffers */

        /* Poll for and process events */

    return 0;