Mercurial > sdl-ios-xcode
view docs/html/sdlpeepevents.html @ 1166:da33b7e6d181
Date: Tue, 1 Nov 2005 20:25:10 +0100
From: Dirk Mueller
Subject: [PATCH] build SDL with nonexecutable stack
libSDL is by default marked with an executable stack, which it doesn't
actually need. the reason for this is that there are assembler files in the
source tree not properly annotated with the "noexec stack" section. As such
the linker does a safe-fallback and marks the whole lib as "requires
executable stack".
the patch below removes this by adding annotations. As far as I can see it
shouldn't break anything.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 01 Nov 2005 23:19:59 +0000 |
parents | 355632dca928 |
children |
line wrap: on
line source
<HTML ><HEAD ><TITLE >SDL_PeepEvents</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_PumpEvents" HREF="sdlpumpevents.html"><LINK REL="NEXT" TITLE="SDL_PollEvent" HREF="sdlpollevent.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="sdlpumpevents.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlpollevent.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLPEEPEVENTS" ></A >SDL_PeepEvents</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN5421" ></A ><H2 >Name</H2 >SDL_PeepEvents -- Checks the event queue for messages and optionally returns them.</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN5424" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN5425" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >int <B CLASS="FSFUNC" >SDL_PeepEvents</B ></CODE >(SDL_Event *events, int numevents, SDL_eventaction action, Uint32 mask);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN5431" ></A ><H2 >Description</H2 ><P >Checks the event queue for messages and optionally returns them.</P ><P >If <TT CLASS="PARAMETER" ><I >action</I ></TT > is <TT CLASS="LITERAL" >SDL_ADDEVENT</TT >, up to <TT CLASS="PARAMETER" ><I >numevents</I ></TT > events will be added to the back of the event queue.</P ><P >If <TT CLASS="PARAMETER" ><I >action</I ></TT > is <TT CLASS="LITERAL" >SDL_PEEKEVENT</TT >, up to <TT CLASS="PARAMETER" ><I >numevents</I ></TT > events at the front of the event queue, matching <A HREF="sdlevent.html" ><TT CLASS="PARAMETER" ><I >mask</I ></TT ></A >, will be returned and will not be removed from the queue.</P ><P >If <TT CLASS="PARAMETER" ><I >action</I ></TT > is <TT CLASS="LITERAL" >SDL_GETEVENT</TT >, up to <TT CLASS="PARAMETER" ><I >numevents</I ></TT > events at the front of the event queue, matching <A HREF="sdlevent.html" ><TT CLASS="PARAMETER" ><I >mask</I ></TT ></A >, will be returned and will be removed from the queue.</P ><P >The <TT CLASS="PARAMETER" ><I >mask</I ></TT > parameter is an bitwise OR of <TT CLASS="LITERAL" >SDL_EVENTMASK</TT >(<TT CLASS="PARAMETER" ><I >event_type</I ></TT >), for all event types you are interested in.</P ><P >This function is thread-safe.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN5455" ></A ><H2 >Return Value</H2 ><P >This function returns the number of events actually stored, or <SPAN CLASS="RETURNVALUE" >-1</SPAN > if there was an error. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN5459" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlevent.html" ><SPAN CLASS="STRUCTNAME" >SDL_Event</SPAN ></A >, <A HREF="sdlpollevent.html" ><TT CLASS="FUNCTION" >SDL_PollEvent</TT ></A >, <A HREF="sdlpushevent.html" ><TT CLASS="FUNCTION" >SDL_PushEvent</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="sdlpumpevents.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="sdlpollevent.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_PumpEvents</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_PollEvent</TD ></TR ></TABLE ></DIV ></BODY ></HTML >