[SDL] nooby question:how to get mappy to scroll

[Ryan C. Gordon]

Josh Matthews wrote:
> You're using SDL_Flip but you're not using doublebuffered mode. 
> Either change the SDL_SetVideoMode call to SDL_SetVideoMode(640,480,
> 24, SDL_SWSURFACE | SDL_DOUBLEBUF) or change the SDL_Flip call to
> SDL_UpdateRect(screen,0,0,0,0).

SDL_Flip() is equivalent to SDL_UpdateRect(screen,0,0,0,0) on 
single-buffered surfaces.

--ryan.