Mercurial > sdl-ios-xcode
view docs/html/sdluserevent.html @ 3261:72b542f34739
The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
The linux code appears to be complete and *should* be the base of all Unix and GCC based versions. The macosx and win32 versions
are currently just copies of the dummy code. I will begin working on the windows version as soon as this check in is done. I
need someone to work on the Mac OS X version.
I'm afraid that this check in will break QNX (Sorry!)
author | Bob Pendleton <bob@pendleton.com> |
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date | Thu, 17 Sep 2009 20:35:12 +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 >