glViewport(0,0,640,480);// Reset The Current ViewportglMatrixMode(GL_PROJECTION);						// Select The Projection MatrixglLoadIdentity();							// Reset The Projection MatrixgluPerspective(45.0f,(GLfloat)640/(GLfloat)480,0.1f,100.0f);glMatrixMode(GL_MODELVIEW);						// Select The Modelview MatrixglLoadIdentity();							// Reset The Modelview Matrix

void Draw(){        SDL_FillRect( SDL_GetVideoSurface() , NULL, 0x000000);        // Your draw code goes here        SDL_Flip( SDL_GetVideoSurface() );}

/*  Name:  Author:  Description:*///Headers#include <stdlib.h>#include <SDL\SDL.h>#include <SDL\SDL_image.h>#include <SDL\SDL_mixer.h>#include <SDL\SDL_gfx.h>//Mainint main(int argc, char *argv[]){    //Initialize SDL and the screen.    SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO );	SDL_Surface *screen = SDL_SetVideoMode(640, 480, 32, SDL_HWSURFACE | SDL_DOUBLEBUF | SDL_FULLSCREEN);    SDL_WM_SetCaption("SDL Project", "SDL Project");	Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 1024);        //Initialize the framerate.    FPSmanager framerate;    SDL_initFramerate(&framerate);    SDL_setFramerate(&framerate, 100);        //Initialize images.    //Initialize sounds.        //Initialize variables.        //Loop start.    while(true)    {        		//See if the user exits.		SDL_Event event;        while ( SDL_PollEvent(&event) )        {			if ( event.type == SDL_QUIT ){				//Free Surfaces.				//Free sounds.				Mix_CloseAudio();				SDL_Quit();				exit(0);			}            if ( event.type == SDL_KEYDOWN )            {                if ( event.key.keysym.sym == SDLK_ESCAPE ){					//Free Surfaces.					//Free sounds.					Mix_CloseAudio();					SDL_Quit();					exit(0);				}            }        }                //Clear the screen.        SDL_FillRect(screen,NULL,SDL_MapRGB(screen->format,0,0,0));                //Get keys.        Uint8 *keys = SDL_GetKeyState(NULL);                //Respond to keys.                      /*	Everything else.	*/			//Draw                //Synchronize the screen.        SDL_Flip(screen);        SDL_framerateDelay(&framerate);    }      }