SDL_GetVideoInfo - returns a pointer to information about the video hardware

       This  function  returns  a  read-only  pointer to information about the video hardware. If this is called
       before SDL_SetVideoMode, the vfmt member of the returned structure will contain the pixel format  of  the
       "best" video mode.

       SDL_GetVideoInfo - returns a pointer to information about the video hardware

SDL_SetVideoMode, SDL_VideoInfo

SDL                                          Tue 11 Sep 2001, 23:01                          SDL_GetVideoInfo(3)

#include"SDL.h"SDL_VideoInfo*SDL_GetVideoInfo(void);