Mercurial > sdl-ios-xcode
view docs/html/sdljoystickgetbutton.html @ 2328:91e601d9df8b
re: bug#563. checking in some commented out trace code and a fix so that the in testalpha.c the background only flashes when alpha == 255. The problem that is being
fixed is caused by clearing SDL_COPY_RLE_COLORKEY without setting SDL_COPY_RLE_DESIRED in SDL_UnRELSurface.
author | Bob Pendleton <bob@pendleton.com> |
---|---|
date | Fri, 14 Mar 2008 18:17:49 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_JoystickGetButton</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_JoystickGetHat" HREF="sdljoystickgethat.html"><LINK REL="NEXT" TITLE="SDL_JoystickGetBall" HREF="sdljoystickgetball.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="sdljoystickgethat.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdljoystickgetball.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLJOYSTICKGETBUTTON" ></A >SDL_JoystickGetButton</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN6404" ></A ><H2 >Name</H2 >SDL_JoystickGetButton -- Get the current state of a given button on a given joystick</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN6407" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN6408" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >Uint8 <B CLASS="FSFUNC" >SDL_JoystickGetButton</B ></CODE >(SDL_Joystick *joystick, int button);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN6414" ></A ><H2 >Description</H2 ><P >SDL_JoystickGetButton returns the current state of the given <TT CLASS="PARAMETER" ><I >button</I ></TT > on the given <TT CLASS="PARAMETER" ><I >joystick</I ></TT >.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN6419" ></A ><H2 >Return Value</H2 ><P ><SPAN CLASS="RETURNVALUE" >1</SPAN > if the button is pressed. Otherwise, <SPAN CLASS="RETURNVALUE" >0</SPAN >.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN6424" ></A ><H2 >See Also</H2 ><P ><A HREF="sdljoysticknumbuttons.html" ><TT CLASS="FUNCTION" >SDL_JoystickNumButtons</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="sdljoystickgethat.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="sdljoystickgetball.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_JoystickGetHat</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_JoystickGetBall</TD ></TR ></TABLE ></DIV ></BODY ></HTML >