SDL_WasInit
Use this function to return a mask of the specified subsystems which have previously been initialized.
Syntax
Uint32 SDL_WasInit(Uint32 flags)
Function Parameters
Return Value
If flags is 0 it returns a mask of all initialized subsystems, otherwise it returns the initialization status of the specified subsystems.
The return value does not include SDL_INIT_NOPARACHUTE.
Code Examples
/* 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.\n");
else
printf("Video is not initialized.\n");
/* Just check for one specific subsystem */
if(SDL_WasInit(SDL_INIT_VIDEO)!=0)
printf("Video is initialized.\n");
else
printf("Video is not initialized.\n");
/* 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.\n");
else
printf("Video and Audio not initialized.\n");
Remarks
These are the flags which may be passed to SDL_WasInit() and may be OR'd together to query multiple subsystems simultaneously.
SDL_INIT_TIMER |
timer subsystem |
SDL_INIT_AUDIO |
audio subsystem |
SDL_INIT_VIDEO |
video subsystem |
SDL_INIT_JOYSTICK |
joystick subsystem |
SDL_INIT_HAPTIC |
haptic (force feedback) subsystem |
SDL_INIT_EVERYTHING |
all of the above subsystems |
SDL_INIT_NOPARACHUTE |
don't catch fatal signals |
