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<HTML><HEAD><TITLE>SDL_PushEvent</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+"><LINKREL="HOME"TITLE="SDL Library Documentation"HREF="index.html"><LINKREL="UP"TITLE="Event Functions."HREF="eventfunctions.html"><LINKREL="PREVIOUS"TITLE="SDL_WaitEvent"HREF="sdlwaitevent.html"><LINKREL="NEXT"TITLE="SDL_SetEventFilter"HREF="sdlseteventfilter.html"></HEAD><BODYCLASS="REFENTRY"BGCOLOR="#FFF8DC"TEXT="#000000"LINK="#0000ee"VLINK="#551a8b"ALINK="#ff0000"><DIVCLASS="NAVHEADER"><TABLESUMMARY="Header navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">SDL Library Documentation</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="sdlwaitevent.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom"></TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="sdlseteventfilter.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><H1><ANAME="SDLPUSHEVENT"></A>SDL_PushEvent</H1><DIVCLASS="REFNAMEDIV"><ANAME="AEN5536"></A><H2>Name</H2>SDL_PushEvent -- Pushes an event onto the event queue</DIV><DIVCLASS="REFSYNOPSISDIV"><ANAME="AEN5539"></A><H2>Synopsis</H2><DIVCLASS="FUNCSYNOPSIS"><ANAME="AEN5540"></A><P></P><PRECLASS="FUNCSYNOPSISINFO">#include "SDL.h"</PRE><P><CODE><CODECLASS="FUNCDEF">int <BCLASS="FSFUNC">SDL_PushEvent</B></CODE>(SDL_Event *event);</CODE></P><P></P></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN5546"></A><H2>Description</H2><P>The event queue can actually be used as a two way communication channel. Not only can events be read from the queue, but the user can also push their own events onto it. <TTCLASS="PARAMETER"><I>event</I></TT> is a pointer to the event structure you wish to push onto the queue.</P><DIVCLASS="NOTE"><BLOCKQUOTECLASS="NOTE"><P><B>Note: </B>Pushing device input events onto the queue doesn't modify the state of the device within SDL.</P></BLOCKQUOTE></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN5552"></A><H2>Return Value</H2><P>Returns <SPANCLASS="RETURNVALUE">0</SPAN> on success or <SPANCLASS="RETURNVALUE">-1</SPAN> if the event couldn't be pushed.</P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN5557"></A><H2>Examples</H2><P>See <AHREF="sdlevent.html"><SPANCLASS="STRUCTNAME">SDL_Event</SPAN></A>.</P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN5562"></A><H2>See Also</H2><P><AHREF="sdlpollevent.html"><TTCLASS="FUNCTION">SDL_PollEvent</TT></A>,<AHREF="sdlpeepevents.html"><TTCLASS="FUNCTION">SDL_PeepEvents</TT></A>,<AHREF="sdlevent.html"><SPANCLASS="STRUCTNAME">SDL_Event</SPAN></A></P></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLESUMMARY="Footer navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="sdlwaitevent.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="index.html"ACCESSKEY="H">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="sdlseteventfilter.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">SDL_WaitEvent</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="eventfunctions.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">SDL_SetEventFilter</TD></TR></TABLE></DIV></BODY></HTML>⌨️ 快捷键说明
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