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view docs/man3/SDL_WasInit.3 @ 363:ca0b4ba5313e
Date: Thu, 18 Apr 2002 13:50:53 -0700
From: Joseph Carter <knghtbrd@bluecherry.net>
Subject: [SDL] A critical bugfix!
I discovered a problem with testgl.c which absolutely MUST be fixed! Not
fixing this bug immediately will be a great blow to budding OpenGL coders
everywhere!
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Fri, 19 Apr 2002 03:29:22 +0000 |
parents | e5bc29de3f0a |
children | 546f7c1eb755 |
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.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_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, Tue 11 Sep 2001, 23:00