SDL_WasInit
Author: liumin liumin3000@gmail.com
Name
SDL_WasInit -- Checks which subsystems are initialized
Synopsis
#include "SDL.h" int 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). If 'flags' is 0 or SDL_INIT_EVERYTHING, it returns a mask of all initialized subsystems (this does not include SDL_INIT_EVENTTHREAD or SDL_INIT_NOPARACHUTE).
Return Value
Returns a bitwised OR'd combination of the initialized subsystems.
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");