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");

See Also

SDL_Init, SDL_InitSubSystem


CategorySDLGeneral

SDL_WasInit (last edited 2010-03-02 13:41:27 by 121)