int main(int argc, char *argv[]) {

  //Initialize the SDL Window
  window.Init(800, 600, 32, "This is a test");
 
  //enables double buffering using SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
  window.SetDoubleBuffered(true);

    //gets size of the window
    int width, height;
    window.GetSize(&width, &height);

    //Set the OpenGL viewport
    glViewport(0, 0, width, height);

    //Clear the screen
    glClearColor(0.5f, 0.5f, 0.5f, 1.0f);

    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();

    gluPerspective(60.0f, (GLfloat)width / (GLfloat)height, 1.0f, 50.0f);

    glMatrixMode(GL_MODELVIEW);

    //Enable depth testing
    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LEQUAL);
    glDepthMask(GL_TRUE);

  //test loop
  bool running = true;
  while (running) {
    //Poll events
    SDL_Event event;
    while (SDL_PollEvent(&event)) {
      switch (event.type) {
        case SDL_QUIT:
          running = false;
          break;
        case SDL_KEYDOWN:
          if (event.key.keysym.sym == SDLK_ESCAPE) running = false;
          break;
      }
    } // End of event polling

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glLoadIdentity();

    gluLookAt(0.0f, 0.0f, 0.0f,
              0.0f, 0.0f, -5.0f,
              0.0f, 1.0f, 0.0f);

    //draw a quad
    glPushMatrix();
      glTranslatef(0.0f, 0.0f, -5.0f);
      glBegin(GL_QUADS);
        glColor3f(1.0f, 0.25f, 0.25f);
        glVertex3f(-1.0f, -1.0f, 0.0f);
        glVertex3f(1.0f, -1.0f, 0.0f);
        glVertex3f(1.0f, 1.0f, 0.0f);
        glVertex3f(-1.0f, 1.0f, 0.0f);
      glEnd();
    glPopMatrix();

    //swap backbuffer to screen buffer
    SDL_GL_SwapBuffers();
  }

  exit(0);
   return 0;
}