Mercurial > sdl-ios-xcode
view docs/html/sdluserevent.html @ 2320:166400aa33d7
Deleted a call to X__PumpEvents at the end of X11_GL_InitExtensions(). This function is being called from SDL_RecreateWindow at a point when the numwindows value in
is incorrect. The result is that an illegal access is being made in X_PumpEvents when it tries to look up the windows ID of the source of an event. Taking out that
call does not seem to have any effect on the testgl. But, I would be happy if someone else took a look at this problem and found a fix higher up the stack.
author | Bob Pendleton <bob@pendleton.com> |
---|---|
date | Sat, 01 Mar 2008 20:34:36 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_UserEvent</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="SDL Event Structures." HREF="eventstructures.html"><LINK REL="PREVIOUS" TITLE="SDL_SysWMEvent" HREF="sdlsyswmevent.html"><LINK REL="NEXT" TITLE="SDL_QuitEvent" HREF="sdlquitevent.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="sdlsyswmevent.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlquitevent.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLUSEREVENT" ></A >SDL_UserEvent</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN4565" ></A ><H2 >Name</H2 >SDL_UserEvent -- A user-defined event type</DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN4568" ></A ><H2 >Structure Definition</H2 ><PRE CLASS="PROGRAMLISTING" >typedef struct{ Uint8 type; int code; void *data1; void *data2; } SDL_UserEvent;</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN4571" ></A ><H2 >Structure Data</H2 ><DIV CLASS="INFORMALTABLE" ><A NAME="AEN4573" ></A ><P ></P ><TABLE BORDER="0" CLASS="CALSTABLE" ><TBODY ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >type</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_USEREVENT</TT > through to <TT CLASS="LITERAL" >SDL_NUMEVENTS-1</TT ></TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >code</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >User defined event code</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >data1</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >User defined data pointer</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >data2</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >User defined data pointer</TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN4594" ></A ><H2 >Description</H2 ><P ><SPAN CLASS="STRUCTNAME" >SDL_UserEvent</SPAN > is in the <TT CLASS="STRUCTFIELD" ><I >user</I ></TT > member of the structure <A HREF="sdlevent.html" ><SPAN CLASS="STRUCTNAME" >SDL_Event</SPAN ></A >. This event is unique, it is never created by SDL but only by the user. The event can be pushed onto the event queue using <A HREF="sdlpushevent.html" ><TT CLASS="FUNCTION" >SDL_PushEvent</TT ></A >. The contents of the structure members or completely up to the programmer, the only requirement is that <TT CLASS="STRUCTFIELD" ><I >type</I ></TT > is a value from <TT CLASS="LITERAL" >SDL_USEREVENT</TT > to <TT CLASS="LITERAL" >SDL_NUMEVENTS-1</TT > (inclusive).</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN4606" ></A ><H2 >Examples</H2 ><P ><PRE CLASS="PROGRAMLISTING" >SDL_Event event; event.type = SDL_USEREVENT; event.user.code = my_event_code; event.user.data1 = significant_data; event.user.data2 = 0; SDL_PushEvent(&event);</PRE ></P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN4610" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlevent.html" ><SPAN CLASS="STRUCTNAME" >SDL_Event</SPAN ></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="sdlsyswmevent.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="sdlquitevent.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_SysWMEvent</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="eventstructures.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_QuitEvent</TD ></TR ></TABLE ></DIV ></BODY ></HTML >