table of contents
SDL_WasInit(3) | 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 subsystems you wish to check (see SDL_Init for a list of subsystem flags).
RETURN VALUE¶
SDL_WasInit returns a bitwised OR'd combination of the initialized 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)
printf("Video and Audio initialized. "); else
printf("Video and Audio not initialized. ");
SEE ALSO¶
SDL_Init, SDL_Subsystem
Tue 11 Sep 2001, 23:00 | SDL |