GLFW3 error: 'glfwGetWin32Window' was not declared in this scope - c++

Question

I was looking for a native API access in GLFW3 documentation to get HWND but it's not in my GLFW/glfw3.h file. Is there any #define's to be able to find it by compiler? I can't also find it manually in the file itself using text-finder, so how can I get it?
PS. I can't tag glfw3.
Edit:
Code:
#define GLFW_INCLUDE_GLU
#define GLFW_EXPOSE_NATIVE_WGL
#define GLFW_EXPOSE_NATIVE_WIN32
#include <GL/GLFW/glfw3native.h>
#include <GL/GLFW/glfw3.h>
#include <ctime>
#include <cstdlib>
...
int main()
{
//glfw setup
...
//bla bla bla
...
//all I want to do is to call this one
ScreenToClient( glfwGetWin32Window(window), &point);
}

Answer 1

After getting confused by your problems I tried it my self and I think the include order is your problem. A minimal code example that mimics on Linux what you try to do on Windows compiles and works as intended:
#define GLFW_EXPOSE_NATIVE_X11
#define GLFW_EXPOSE_NATIVE_GLX
#include <GLFW/glfw3.h>
#include <GLFW/glfw3native.h>
int main (int argc, char ** argv)
{
glfwInit();
GLFWwindow* window = glfwCreateWindow (256, 256, "GLFW", nullptr, nullptr);
glfwGetX11Window(window);
glfwTerminate();
return 0;
}
EDIT: Added the incovation of glfwTerminate() for proper clean-up. Please note, of course there should be appropriate error checking taking place, but for the purpose of demonstrating a minimal example, the above is sufficient.