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view docs/html/sdleventstate.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 |
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<HTML ><HEAD ><TITLE >SDL_EventState</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_GetEventFilter" HREF="sdlgeteventfilter.html"><LINK REL="NEXT" TITLE="SDL_GetKeyState" HREF="sdlgetkeystate.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="sdlgeteventfilter.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlgetkeystate.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLEVENTSTATE" ></A >SDL_EventState</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN5646" ></A ><H2 >Name</H2 >SDL_EventState -- This function allows you to set the state of processing certain events.</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN5649" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN5650" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >Uint8 <B CLASS="FSFUNC" >SDL_EventState</B ></CODE >(Uint8 type, int state);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN5656" ></A ><H2 >Description</H2 ><P >This function allows you to set the state of processing certain event <TT CLASS="PARAMETER" ><I >type</I ></TT >'s.</P ><P >If <TT CLASS="PARAMETER" ><I >state</I ></TT > is set to <TT CLASS="LITERAL" >SDL_IGNORE</TT >, that event <TT CLASS="PARAMETER" ><I >type</I ></TT > will be automatically dropped from the event queue and will not be filtered.</P ><P >If <TT CLASS="PARAMETER" ><I >state</I ></TT > is set to <TT CLASS="LITERAL" >SDL_ENABLE</TT >, that event <TT CLASS="PARAMETER" ><I >type</I ></TT > will be processed normally.</P ><P >If <TT CLASS="PARAMETER" ><I >state</I ></TT > is set to <TT CLASS="LITERAL" >SDL_QUERY</TT >, <TT CLASS="FUNCTION" >SDL_EventState</TT > will return the current processing state of the specified event <TT CLASS="PARAMETER" ><I >type</I ></TT >.</P ><P >A list of event <TT CLASS="PARAMETER" ><I >type</I ></TT >'s can be found in the <A HREF="sdlevent.html" ><SPAN CLASS="STRUCTNAME" >SDL_Event</SPAN ></A > section.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN5677" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlevent.html" ><SPAN CLASS="STRUCTNAME" >SDL_Event</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="sdlgeteventfilter.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="sdlgetkeystate.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_GetEventFilter</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="eventfunctions.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_GetKeyState</TD ></TR ></TABLE ></DIV ></BODY ></HTML >