#include <Windows.h>
#include <glGL.h>
#include "glcorearb.h"
#include "glext.h"
#include "wglext.h"
...
wglCreateContextAttribsARB = // Not recognised
(PFNWGLCREATECONTEXTATTRIBSARBPROC) wglGetProcAddress("wglCreateContextAttribsARB"); // Recognised (Why this and not the function name?)

typedef HGLRC (WINAPI * PFNWGLCREATECONTEXTATTRIBSARBPROC) (HDC hDC, HGLRC hShareContext, const int *attribList);
#ifdef WGL_WGLEXT_PROTOTYPES
HGLRC WINAPI wglCreateContextAttribsARB (HDC hDC, HGLRC hShareContext, const int *attribList);
#endif

PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB =
  (PFNWGLCREATECONTEXTATTRIBSARBPROC) wglGetProcAddress("wglCreateContextAttribsARB");