📄 sdlpumpevents.html

📁 VC5.6.7的一个扩展库。跟DirectX的功能差不多。
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<HTML><HEAD><TITLE>SDL_PumpEvents</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="Event Functions."HREF="eventfunctions.html"><LINKREL="NEXT"TITLE="SDL_PeepEvents"HREF="sdlpeepevents.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="eventfunctions.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom"></TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="sdlpeepevents.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><H1><ANAME="SDLPUMPEVENTS"></A>SDL_PumpEvents</H1><DIVCLASS="REFNAMEDIV"><ANAME="AEN5387"></A><H2>Name</H2>SDL_PumpEvents&nbsp;--&nbsp;Pumps the event loop, gathering events from the input devices.</DIV><DIVCLASS="REFSYNOPSISDIV"><ANAME="AEN5390"></A><H2>Synopsis</H2><DIVCLASS="FUNCSYNOPSIS"><ANAME="AEN5391"></A><P></P><PRECLASS="FUNCSYNOPSISINFO">#include "SDL.h"</PRE><P><CODE><CODECLASS="FUNCDEF">void <BCLASS="FSFUNC">SDL_PumpEvents</B></CODE>(void);</CODE></P><P></P></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN5397"></A><H2>Description</H2><P>Pumps the event loop, gathering events from the input devices.</P><P><TTCLASS="FUNCTION">SDL_PumpEvents</TT> gathers all the pending input information from devices and places it on the event queue. Without calls to <TTCLASS="FUNCTION">SDL_PumpEvents</TT> no events would ever be placed on the queue. Often calls the need for <TTCLASS="FUNCTION">SDL_PumpEvents</TT> is hidden from the user since <AHREF="sdlpollevent.html"><TTCLASS="FUNCTION">SDL_PollEvent</TT></A> and <AHREF="sdlwaitevent.html"><TTCLASS="FUNCTION">SDL_WaitEvent</TT></A> implicitly call <TTCLASS="FUNCTION">SDL_PumpEvents</TT>. However, if you are not polling or waiting for events (e.g. you are filtering them), then you must call <TTCLASS="FUNCTION">SDL_PumpEvents</TT> to force an event queue update.</P><DIVCLASS="NOTE"><BLOCKQUOTECLASS="NOTE"><P><B>Note: </B>You can only call this function in the thread that set the video mode.</P></BLOCKQUOTE></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN5412"></A><H2>See Also</H2><P><AHREF="sdlpollevent.html"><TTCLASS="FUNCTION">SDL_PollEvent</TT></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="eventfunctions.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="sdlpeepevents.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">Event Functions.</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="eventfunctions.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">SDL_PeepEvents</TD></TR></TABLE></DIV></BODY></HTML>
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