SDL_WasInit.3
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上传日期:2007-02-02
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流媒体/Mpeg4/MP4
开发平台:
Visual C++
- .TH "SDL_WasInit" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference"
- .SH "NAME"
- SDL_WasInit- Check which subsystems are initialized
- .SH "SYNOPSIS"
- .PP
- fB#include "SDL&.h"
- .sp
- fBUint32 fBSDL_WasInitfPfR(fBUint32 flagsfR);
- .SH "DESCRIPTION"
- .PP
- fBSDL_WasInitfP allows you to see which SDL subsytems have been fIinitializedfR&. fBflagsfR is a bitwise OR&'d combination of the subsystems you wish to check (see fIfBSDL_InitfPfR for a list of subsystem flags)&.
- .SH "RETURN VALUE"
- .PP
- fBSDL_WasInitfP returns a bitwised OR&'d combination of the initialized subsystems&.
- .SH "EXAMPLES"
- .PP
- .nf
- f(CW
- /* 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&.
- ");
- fR
- .fi
- .PP
- .SH "SEE ALSO"
- .PP
- fIfBSDL_InitfPfR, fIfBSDL_SubsystemfPfR
- ..." created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00