Manual Pages for UNIX Operating System command usage for man SDL_WasInit

SDL API Reference                                  SDL_WasInit(3)



NAME
     SDL_WasInit - Check which subsystems are initialized

SYNOPSIS
     #include "SDL.h"

     Uint32 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 sub-
     systems you wish to check (see SDL_Init for a list  of  sub-
     system flags).

RETURN VALUE
     SDL_WasInit returns a bitwised OR'd combination of the  ini-
     tialized subsystems.

EXAMPLES
     /* Here are several ways you can use SDL_WasInit() */

     /* 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.
     ");
     else
       printf("Video is not initialized.
     ");



     /* Just check for one specfic subsystem */

     if(SDL_WasInit(SDL_INIT_VIDEO)!=0)
       printf("Video is initialized.
     ");
     else
       printf("Video is not initialized.
     ");




     /* Check for two subsystems */

     Uint32 subsystem_mask=SDL_INIT_VIDEO|SDL_INIT_AUDIO;

     if(SDL_WasInit(subsystem_mask)==subsystem_mask)



SDL            Last change: Tue 11 Sep 2001, 23:00              1






SDL API Reference                                  SDL_WasInit(3)



       printf("Video and Audio initialized.
     ");
     else
       printf("Video and Audio not initialized.
     ");


SEE ALSO
     SDL_Init, SDL_Subsystem














































SDL            Last change: Tue 11 Sep 2001, 23:00              2