Mercurial > sdl-ios-xcode
view docs/html/sdlinit.html @ 2938:2929ed239d2a
Adjusted default choice of audio driver.
If a driver can definitely see available devices, it is chosen. Otherwise,
we'll take the first driver that initializes but saw no devices...this might
be because it can't enumerate them, or there really aren't any available.
This prevents the dsp driver from hogging control when there are no /dev/dsp*
nodes (for example, on a Linux box with ALSA and no OSS emulation).
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Thu, 01 Jan 2009 07:54:58 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_Init</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="General" HREF="general.html"><LINK REL="PREVIOUS" TITLE="General" HREF="general.html"><LINK REL="NEXT" TITLE="SDL_InitSubSystem" HREF="sdlinitsubsystem.html"></HEAD ><BODY CLASS="REFENTRY" 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="general.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlinitsubsystem.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLINIT" ></A >SDL_Init</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN440" ></A ><H2 >Name</H2 >SDL_Init -- Initializes SDL</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN443" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN444" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >int <B CLASS="FSFUNC" >SDL_Init</B ></CODE >(Uint32 flags);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN450" ></A ><H2 >Description</H2 ><P >Initializes SDL. This should be called before all other SDL functions. The <TT CLASS="PARAMETER" ><I >flags</I ></TT > parameter specifies what part(s) of SDL to initialize.</P ><DIV CLASS="INFORMALTABLE" ><A NAME="AEN454" ></A ><P ></P ><TABLE BORDER="1" CLASS="CALSTABLE" ><TBODY ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_TIMER</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Initializes the <A HREF="time.html" >timer</A > subsystem.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_AUDIO</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Initializes the <A HREF="audio.html" >audio</A > subsystem.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_VIDEO</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Initializes the <A HREF="video.html" >video</A > subsystem.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_CDROM</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Initializes the <A HREF="cdrom.html" >cdrom</A > subsystem.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_JOYSTICK</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Initializes the <A HREF="joystick.html" >joystick</A > subsystem.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_EVERYTHING</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Initialize all of the above.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_NOPARACHUTE</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Prevents SDL from catching fatal signals.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_EVENTTHREAD</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" > </TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN494" ></A ><H2 >Return Value</H2 ><P >Returns <SPAN CLASS="RETURNVALUE" >-1</SPAN > on an error or <SPAN CLASS="RETURNVALUE" >0</SPAN > on success.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN499" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlquit.html" ><TT CLASS="FUNCTION" >SDL_Quit</TT ></A >, <A HREF="sdlinitsubsystem.html" ><TT CLASS="FUNCTION" >SDL_InitSubSystem</TT ></A ></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="general.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="sdlinitsubsystem.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >General</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="general.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_InitSubSystem</TD ></TR ></TABLE ></DIV ></BODY ></HTML >