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SDL_WasInit

NAME

SDL_WasInit - Check which subsystems are initialized

SYNOPSIS

#include "SDL.h"

Uint32 SDL_WasInit(Uint32 flags);

DESCRIPTION

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).

RETURN VALUE

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

EXAMPLES

 
 /* 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.
 ");
 
 

SEE ALSO

SDL_Init, SDL_Subsystem