Get a mask of the specified subsystems which are currently initialized.
Defined in <SDL3/SDL_init.h>
SDL_InitFlags SDL_WasInit(SDL_InitFlags flags);
SDL_InitFlags | flags | any of the flags used by SDL_Init(); see SDL_Init for details. |
(SDL_InitFlags) Returns a mask of all initialized subsystems if flags
is 0, otherwise it returns the initialization status of the specified subsystems.
This function is available since SDL 3.1.3.