Mercurial > sdl-ios-xcode
view docs/html/sdljoystickeventstate.html @ 3191:91b335df6fc8
Fixed bug #750
Since many different event structures include windowID it should be placed near
the beginning of the structure (preferably right after type) so it's position
is the same between different events.
This is to avoid code like this:
if (event.type == SDL_WINDOWEVENT)
win = event.window.windowID;
else if ((SDL_EVENTMASK(event.type) & SDL_KEYEVENTMASK) != 0)
win = event.key.windowID;
else if (event.type == SDL_TEXTINPUT)
win = event.text.windowID;
else if (event.type == SDL_MOUSEMOTION)
win = event.motion.windowID;
else if ((SDL_EVENTMASK(event.type) & (SDL_MOUBUTTONDOWNMASK |
SDL_MOUBUTTONUPMASK)) != 0)
win = event.button.windowID;
else if (event.type == SDL_MOUSEWHEEL)
win = event.wheel.windowID;
...
in favor of:
win = event.window.windowID;
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Wed, 10 Jun 2009 14:00:21 +0000 |
parents | 355632dca928 |
children |
line wrap: on
line source
<HTML ><HEAD ><TITLE >SDL_JoystickEventState</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="Event Functions." HREF="eventfunctions.html"><LINK REL="PREVIOUS" TITLE="SDL_GetAppState" HREF="sdlgetappstate.html"><LINK REL="NEXT" TITLE="Joystick" HREF="joystick.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="sdlgetappstate.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="joystick.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLJOYSTICKEVENTSTATE" ></A >SDL_JoystickEventState</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN5969" ></A ><H2 >Name</H2 >SDL_JoystickEventState -- Enable/disable joystick event polling</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN5972" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN5973" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >int <B CLASS="FSFUNC" >SDL_JoystickEventState</B ></CODE >(int state);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="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 <A HREF="sdljoystickupdate.html" ><TT CLASS="FUNCTION" >SDL_JoystickUpdate</TT ></A > and read the joystick information manually. <TT CLASS="PARAMETER" ><I >state</I ></TT > is either <TT CLASS="LITERAL" >SDL_QUERY</TT >, <TT CLASS="LITERAL" >SDL_ENABLE</TT > or <TT CLASS="LITERAL" >SDL_IGNORE</TT >.</P ><DIV CLASS="NOTE" ><BLOCKQUOTE CLASS="NOTE" ><P ><B >Note: </B >Joystick event handling is prefered</P ></BLOCKQUOTE ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN5990" ></A ><H2 >Return Value</H2 ><P >If <TT CLASS="PARAMETER" ><I >state</I ></TT > is <TT CLASS="LITERAL" >SDL_QUERY</TT > then the current state is returned, otherwise the new processing <TT CLASS="PARAMETER" ><I >state</I ></TT > is returned.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN5996" ></A ><H2 >See Also</H2 ><P ><A HREF="joystick.html" >SDL Joystick Functions</A >, <A HREF="sdljoystickupdate.html" ><TT CLASS="FUNCTION" >SDL_JoystickUpdate</TT ></A >, <A HREF="sdljoyaxisevent.html" ><SPAN CLASS="STRUCTNAME" >SDL_JoyAxisEvent</SPAN ></A >, <A HREF="sdljoyballevent.html" ><SPAN CLASS="STRUCTNAME" >SDL_JoyBallEvent</SPAN ></A >, <A HREF="sdljoybuttonevent.html" ><SPAN CLASS="STRUCTNAME" >SDL_JoyButtonEvent</SPAN ></A >, <A HREF="sdljoyhatevent.html" ><SPAN CLASS="STRUCTNAME" >SDL_JoyHatEvent</SPAN ></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="sdlgetappstate.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="joystick.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_GetAppState</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="eventfunctions.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Joystick</TD ></TR ></TABLE ></DIV ></BODY ></HTML >