Mercurial > sdl-ios-xcode
view docs/html/sdljoystickopened.html @ 2197:2ff40f30af31
Merged r3261:3262 from branches/SDL-1.2: MMX/YUV with __OPTIMIZE__.
"Mac OS X/x86 won't build the MMX/YUV inline assembly without optimizations
enabled (not enough registers), so for now, we only build it if we see
the __OPTIMIZE__ #define, which GCC provides when you build at -O1 or higher."
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Sat, 14 Jul 2007 07:28:45 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_JoystickOpened</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="Joystick" HREF="joystick.html"><LINK REL="PREVIOUS" TITLE="SDL_JoystickOpen" HREF="sdljoystickopen.html"><LINK REL="NEXT" TITLE="SDL_JoystickIndex" HREF="sdljoystickindex.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="sdljoystickopen.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdljoystickindex.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLJOYSTICKOPENED" ></A >SDL_JoystickOpened</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN6128" ></A ><H2 >Name</H2 >SDL_JoystickOpened -- Determine if a joystick has been opened</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN6131" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN6132" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >int <B CLASS="FSFUNC" >SDL_JoystickOpened</B ></CODE >(int index);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN6138" ></A ><H2 >Description</H2 ><P >Determines whether a joystick has already been opened within the application. <TT CLASS="PARAMETER" ><I >index</I ></TT > refers to the N'th joystick on the system.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN6142" ></A ><H2 >Return Value</H2 ><P >Returns <SPAN CLASS="RETURNVALUE" >1</SPAN > if the joystick has been opened, or <SPAN CLASS="RETURNVALUE" >0</SPAN > if it has not.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN6147" ></A ><H2 >See Also</H2 ><P ><A HREF="sdljoystickopen.html" ><TT CLASS="FUNCTION" >SDL_JoystickOpen</TT ></A >, <A HREF="sdljoystickclose.html" ><TT CLASS="FUNCTION" >SDL_JoystickClose</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="sdljoystickopen.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="sdljoystickindex.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_JoystickOpen</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="joystick.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_JoystickIndex</TD ></TR ></TABLE ></DIV ></BODY ></HTML >