#pragma comment(lib, "opengl32.lib")
#pragma comment(lib, "glu32.lib")
#include <gl\gl.h>            
#include <gl\glu.h>  
void draw();

void setup_screen(int width,int height);

int _pixel_format(HDC dc);  

// Now we need device context

dc = GetDC(w_handle);

// Pass it to our pixel format setup func

_pixel_format(dc);

// After done, we want to setup GL stuff, i.e. perspective and etc.

setup_screen(640,480);