📄 sdljoystickeventstate.html
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<HTML><HEAD><TITLE>SDL_JoystickEventState</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+"><LINKREL="HOME"TITLE="SDL Library Documentation"HREF="index.html"><LINKREL="UP"TITLE="Event Functions."HREF="eventfunctions.html"><LINKREL="PREVIOUS"TITLE="SDL_GetAppState"HREF="sdlgetappstate.html"><LINKREL="NEXT"TITLE="Joystick"HREF="joystick.html"></HEAD><BODYCLASS="REFENTRY"BGCOLOR="#FFF8DC"TEXT="#000000"LINK="#0000ee"VLINK="#551a8b"ALINK="#ff0000"><DIVCLASS="NAVHEADER"><TABLESUMMARY="Header navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">SDL Library Documentation</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="sdlgetappstate.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom"></TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="joystick.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><H1><ANAME="SDLJOYSTICKEVENTSTATE"></A>SDL_JoystickEventState</H1><DIVCLASS="REFNAMEDIV"><ANAME="AEN5969"></A><H2>Name</H2>SDL_JoystickEventState -- Enable/disable joystick event polling</DIV><DIVCLASS="REFSYNOPSISDIV"><ANAME="AEN5972"></A><H2>Synopsis</H2><DIVCLASS="FUNCSYNOPSIS"><ANAME="AEN5973"></A><P></P><PRECLASS="FUNCSYNOPSISINFO">#include "SDL.h"</PRE><P><CODE><CODECLASS="FUNCDEF">int <BCLASS="FSFUNC">SDL_JoystickEventState</B></CODE>(int state);</CODE></P><P></P></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN5979"></A><H2>Description</H2><P>This function is used to enable or disable joystick event processing. With joystick event processing disabled you will have to update joystick states with <AHREF="sdljoystickupdate.html"><TTCLASS="FUNCTION">SDL_JoystickUpdate</TT></A> and read the joystick information manually. <TTCLASS="PARAMETER"><I>state</I></TT> is either <TTCLASS="LITERAL">SDL_QUERY</TT>, <TTCLASS="LITERAL">SDL_ENABLE</TT> or <TTCLASS="LITERAL">SDL_IGNORE</TT>.</P><DIVCLASS="NOTE"><BLOCKQUOTECLASS="NOTE"><P><B>Note: </B>Joystick event handling is prefered</P></BLOCKQUOTE></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN5990"></A><H2>Return Value</H2><P>If <TTCLASS="PARAMETER"><I>state</I></TT> is <TTCLASS="LITERAL">SDL_QUERY</TT> then the current state is returned, otherwise the new processing <TTCLASS="PARAMETER"><I>state</I></TT> is returned.</P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN5996"></A><H2>See Also</H2><P><AHREF="joystick.html">SDL Joystick Functions</A>,<AHREF="sdljoystickupdate.html"><TTCLASS="FUNCTION">SDL_JoystickUpdate</TT></A>,<AHREF="sdljoyaxisevent.html"><SPANCLASS="STRUCTNAME">SDL_JoyAxisEvent</SPAN></A>,<AHREF="sdljoyballevent.html"><SPANCLASS="STRUCTNAME">SDL_JoyBallEvent</SPAN></A>,<AHREF="sdljoybuttonevent.html"><SPANCLASS="STRUCTNAME">SDL_JoyButtonEvent</SPAN></A>,<AHREF="sdljoyhatevent.html"><SPANCLASS="STRUCTNAME">SDL_JoyHatEvent</SPAN></A></P></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLESUMMARY="Footer navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="sdlgetappstate.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="index.html"ACCESSKEY="H">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="joystick.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">SDL_GetAppState</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="eventfunctions.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">Joystick</TD></TR></TABLE></DIV></BODY></HTML>⌨️ 快捷键说明
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