NAME
       SDL_InitSubSystem - Initialize subsystems
SYNOPSIS
       #include "SDL.h"
       int SDL_InitSubSystem(Uint32 flags);
DESCRIPTION
       After  SDL  has  been  initialized  with  SDL_Init  you  may initialize
       uninitialized subsystems with SDL_InitSubSystem. The flags parameter is
       the same as that used in SDL_Init.
EXAMPLES
       /* Seperating Joystick and Video initialization. */
       SDL_Init(SDL_INIT_VIDEO);
       .
       .
       SDL_SetVideoMode(640, 480, 16, SDL_DOUBLEBUF|SDL_FULLSCREEN);
       .
       /* Do Some Video stuff */
       .
       .
       /* Initialize the joystick subsystem */
       SDL_InitSubSystem(SDL_INIT_JOYSTICK);
       /* Do some stuff with video and joystick */
       .
       .
       .
       /* Shut them both down */
       SDL_Quit();
RETURN VALUE
       Returns -1 on an error or 0 on success.
SEE ALSO
       SDL_Init, SDL_Quit, SDL_QuitSubSystem