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| Deletions are marked like this. | Additions are marked like this. |
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| subsystem_init=SDL_WasInit(SDL_INIT_EVERYTHING); | subsystem_init = SDL_WasInit(SDL_INIT_EVERYTHING); |
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| if(subsystem_init&SDL_INIT_VIDEO) printf("Video is initialized.\n"); else printf("Video is not initialized.\n"); |
if (subsystem_init & SDL_INIT_VIDEO) { printf("Video is initialized.\n"); } else { printf("Video is not initialized.\n"); } |
| Line 37: | Line 38: |
| if(SDL_WasInit(SDL_INIT_VIDEO)!=0) printf("Video is initialized.\n"); else printf("Video is not initialized.\n"); |
if (SDL_WasInit(SDL_INIT_VIDEO) != 0) { printf("Video is initialized.\n"); } else { printf("Video is not initialized.\n"); } |
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| Uint32 subsystem_mask = SDL_INIT_VIDEO | SDL_INIT_AUDIO; | |
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| 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"); |
if (SDL_WasInit(subsystem_mask) == subsystem_mask) { printf("Video and Audio initialized.\n"); } else { printf("Video and Audio not initialized.\n"); } |
SDL_WasInit
Use this function to return a mask of the specified subsystems which have previously been initialized.
Contents
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.
Include: Nothing found for "Unless the"!
SDL_INIT_TIMER |
timer subsystem |
SDL_INIT_AUDIO |
audio subsystem |
SDL_INIT_VIDEO |
video subsystem; automatically initializes the events subsystem |
SDL_INIT_JOYSTICK |
joystick subsystem; automatically initializes the events subsystem |
SDL_INIT_HAPTIC |
haptic (force feedback) subsystem |
SDL_INIT_GAMECONTROLLER |
controller subsystem; automatically initializes the joystick subsystem |
SDL_INIT_EVENTS |
events subsystem |
SDL_INIT_EVERYTHING |
all of the above subsystems |
SDL_INIT_NOPARACHUTE |
compatibility; this flag is ignored |
If you want to initialize subsystems separately you would call SDL_Init(0) followed by SDL_InitSubSystem() with the desired subsystem flag.
Related Functions
