Uint32 SDL_WasInit(Uint32 flags)

/* Pobierz dane o inicjalizacji wszystkich podsystemów */
Uint32 subsystem_init;

subsystem_init = SDL_WasInit(SDL_INIT_EVERYTHING);

if (subsystem_init & SDL_INIT_VIDEO)
{
    printf("Video is initialized.\n");
}
else
{
    printf("Video is not initialized.\n");
}

/* Sprawdź tylko jeden określony podsystem */

if (SDL_WasInit(SDL_INIT_VIDEO) != 0)
{
    printf("Video is initialized.\n");
}
else
{
    printf("Video is not initialized.\n");
}

/* Sprawdź dwa podsystemy */
Uint32 subsystem_mask = SDL_INIT_VIDEO | SDL_INIT_AUDIO;

if (SDL_WasInit(subsystem_mask) == subsystem_mask)
{
    printf("Video and Audio initialized.\n");
}
else
{
    printf("Video and Audio not initialized.\n");
}