Mercurial > sdl-ios-xcode
diff docs/man3/SDL_WasInit.3 @ 0:74212992fb08
Initial revision
author | Sam Lantinga <slouken@lokigames.com> |
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date | Thu, 26 Apr 2001 16:45:43 +0000 |
parents | |
children | 55f1f1b3e27d |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/docs/man3/SDL_WasInit.3 Thu Apr 26 16:45:43 2001 +0000 @@ -0,0 +1,63 @@ +.TH "SDL_WasInit" "3" "Mon 12 Mar 2001, 01:03" "SDL" "SDL API Reference" +.SH "NAME" +SDL_WasInit\- Check which subsystems are initialized +.SH "SYNOPSIS" +.PP +\fB#include "SDL\&.h" +.sp +\fBUint32 \fBSDL_WasInit\fP\fR(\fBUint32 flags\fR); +.SH "DESCRIPTION" +.PP +\fBSDL_WasInit\fP allows you to see which SDL subsytems have been \fIinitialized\fR\&. \fBflags\fR is a bitwise OR\&'d combination of the subsystems you wish to check (see \fI\fBSDL_Init\fP\fR for a list of subsystem flags)\&. +.SH "RETURN VALUE" +.PP +\fBSDL_WasInit\fP 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 +\fI\fBSDL_Init\fP\fR, \fI\fBSDL_Subsystem\fP\fR +...\" created by instant / docbook-to-man, Mon 12 Mar 2001, 01:03