Mercurial > sdl-ios-xcode
view docs/html/general.html @ 3958:85b6fb6a5e3c SDL-1.2
Actually, this is a better fix...clear the error state once if everything we
need loaded; it's more efficient, and works even if the last unnecessary
xrandr symbol failed to load. Otherwise, leave the original loadso error, so
the end user can find out what symbol failed.
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Wed, 13 Jun 2007 08:00:10 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >General</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="SDL Reference" HREF="reference.html"><LINK REL="PREVIOUS" TITLE="SDL Reference" HREF="reference.html"><LINK REL="NEXT" TITLE="SDL_Init" HREF="sdlinit.html"><META NAME="KEYWORD" CONTENT="general"><META NAME="KEYWORD" CONTENT="function"></HEAD ><BODY CLASS="CHAPTER" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="reference.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlinit.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="CHAPTER" ><H1 ><A NAME="GENERAL" ></A >Chapter 5. General</H1 ><DIV CLASS="TOC" ><DL ><DT ><B >Table of Contents</B ></DT ><DT ><A HREF="sdlinit.html" >SDL_Init</A > -- Initializes SDL</DT ><DT ><A HREF="sdlinitsubsystem.html" >SDL_InitSubSystem</A > -- Initialize subsystems</DT ><DT ><A HREF="sdlquitsubsystem.html" >SDL_QuitSubSystem</A > -- Shut down a subsystem</DT ><DT ><A HREF="sdlquit.html" >SDL_Quit</A > -- Shut down SDL</DT ><DT ><A HREF="sdlwasinit.html" >SDL_WasInit</A > -- Check which subsystems are initialized</DT ><DT ><A HREF="sdlgeterror.html" >SDL_GetError</A > -- Get SDL error string</DT ><DT ><A HREF="sdlenvvars.html" >SDL_envvars</A > -- SDL environment variables</DT ></DL ></DIV ><P >Before SDL can be used in a program it must be initialized with <A HREF="sdlinit.html" ><TT CLASS="FUNCTION" >SDL_Init</TT ></A >. <TT CLASS="FUNCTION" >SDL_Init</TT > initializes all the subsystems that the user requests (video, audio, joystick, timers and/or cdrom). Once SDL is initialized with <TT CLASS="FUNCTION" >SDL_Init</TT > subsystems can be shut down and initialized as needed using <A HREF="sdlinitsubsystem.html" ><TT CLASS="FUNCTION" >SDL_InitSubSystem</TT ></A > and <A HREF="sdlquitsubsystem.html" ><TT CLASS="FUNCTION" >SDL_QuitSubSystem</TT ></A >.</P ><P >SDL must also be shut down before the program exits to make sure it cleans up correctly. Calling <A HREF="sdlquit.html" ><TT CLASS="FUNCTION" >SDL_Quit</TT ></A > shuts down all subsystems and frees any resources allocated to SDL.</P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="reference.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlinit.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL Reference</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="reference.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_Init</TD ></TR ></TABLE ></DIV ></BODY ></HTML >