DOKK / manpages / debian 10 / libsdl1.2-dev / SDL_WasInit.3.en
SDL_WasInit(3) SDL API Reference SDL_WasInit(3)

SDL_WasInit - Check which subsystems are initialized

#include "SDL.h"

Uint32 SDL_WasInit(Uint32 flags);

SDL_WasInit allows you to see which SDL subsytems have been initialized. flags is a bitwise OR'd combination of the subsystems you wish to check (see SDL_Init for a list of subsystem flags).

SDL_WasInit returns a bitwised OR'd combination of the initialized subsystems.


/* Here are several ways you can use SDL_WasInit() */
/* Get init data on all the subsystems */
Uint32 subsystem_init;
subsystem_init=SDL_WasInit(SDL_INIT_EVERYTHING);
if(subsystem_init&SDL_INIT_VIDEO)

printf("Video is initialized. "); else
printf("Video is not initialized. "); /* Just check for one specfic subsystem */ if(SDL_WasInit(SDL_INIT_VIDEO)!=0)
printf("Video is initialized. "); else
printf("Video is not initialized. "); /* Check for two subsystems */ Uint32 subsystem_mask=SDL_INIT_VIDEO|SDL_INIT_AUDIO; if(SDL_WasInit(subsystem_mask)==subsystem_mask)
printf("Video and Audio initialized. "); else
printf("Video and Audio not initialized. ");

SDL_Init, SDL_Subsystem

Tue 11 Sep 2001, 23:00 SDL