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| Use this function to return ^a^ mask of the specified subsystems which have ^previously^ been initialized. | Use this function to return a mask of the specified subsystems which have previously been initialized. |
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| If flags is 0, it returns a mask of all initialized subsystems. <<Color2(green,Otherwise it returns the initialization status of the specified subsystems. ?????)>> | 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_EVENTTHREAD or SDL_INIT_NOPARACHUTE. |
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| You can add your code example here | /* 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"); }}} {{{#!highlight cpp /* 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"); }}} {{{#!highlight cpp /* 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"); |
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| <<Anchor(flags)>>These are the flags which may be passed to [[SDL_WasInit]]() and may be OR'd together to query multiple, specific subsystems simultaneously. <<Include(SDL_Init, , , from="OR'd together.", to="== Return Value ==")>> |
<<Anchor(flags)>>These are the flags which may be passed to [[SDL_WasInit]]() and may be OR'd together to query multiple subsystems simultaneously. |
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| ''You can add useful comments here'' | <<Include(SDL_Init, , , from="OR'd together:", to="Unless the")>> |
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_EVENTTHREAD or 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
