#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)
{
glfwTerminate();
return -1;
}

/* Make the window's context current */
glfwMakeContextCurrent(window);

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

/* Swap front and back buffers */
glfwSwapBuffers(window);

/* Poll for and process events */
glfwPollEvents();
}

glfwTerminate();
return 0;
}

3.2 - Why do I get link errors when trying to build my program?
If you get errors like this one when you try to compile a program using GLFW:

error LNK2001: unresolved external symbol _glfwGetWindowAttrib

(Example from Microsoft Visual C++)

then you have most likely not linked your program against GLFW correctly. How to do this is described in section 4.2.2 of the readme.html file that is included in the GLFW source and binary distributions.

1>------ Build started: Project: glfwAPP, Configuration: Debug Win32 ------
1> mainGLFW.cpp
1>MSVCRT.lib(MSVCR110.dll) : error LNK2005: _free already defined in LIBCMT.lib(free.obj)
1>MSVCRT.lib(MSVCR110.dll) : error LNK2005: _malloc already defined in LIBCMT.lib(malloc.obj)
1>MSVCRT.lib(MSVCR110.dll) : error LNK2005: _realloc already defined in LIBCMT.lib(realloc.obj)
1>LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other libs; use /NODEFAULTLIB:library
1>C:\Users\Ciberus\Documents\Visual Studio 2012\Projects\glfwAPP\Debug\glfwAPP.exe : fatal error LNK1169: one or more multiply defined symbols found
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========