Mercurial > sdl-ios-xcode
view docs/html/sdluserevent.html @ 3844:332a59e39ce1 SDL-ryan-multiple-audio-device
I really don't want to update these last two audio backends...I added an
error that says if no one complains, the backends will be removed eventually.
So if anyone ever wants them and they care enough to speak up, we'll know to
do something about it. If no one does, that's less code to maintain. :)
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Tue, 17 Oct 2006 06:45:17 +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 >