📄 sdlquitevent.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_QuitEvent</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+"><LINKREL="HOME"TITLE="SDL Library Documentation"HREF="index.html"><LINKREL="UP"TITLE="SDL Event Structures."HREF="eventstructures.html"><LINKREL="PREVIOUS"TITLE="SDL_UserEvent"HREF="sdluserevent.html"><LINKREL="NEXT"TITLE="SDL_keysym"HREF="sdlkeysym.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="sdluserevent.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom"></TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="sdlkeysym.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><H1><ANAME="SDLQUITEVENT"></A>SDL_QuitEvent</H1><DIVCLASS="REFNAMEDIV"><ANAME="AEN4621"></A><H2>Name</H2>SDL_QuitEvent&nbsp;--&nbsp;Quit requested event</DIV><DIVCLASS="REFSECT1"><ANAME="AEN4624"></A><H2>Structure Definition</H2><PRECLASS="PROGRAMLISTING">typedef struct{  Uint8 type} SDL_QuitEvent;</PRE></DIV><DIVCLASS="REFSECT1"><ANAME="AEN4627"></A><H2>Structure Data</H2><DIVCLASS="INFORMALTABLE"><ANAME="AEN4629"></A><P></P><TABLEBORDER="0"CLASS="CALSTABLE"><TBODY><TR><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="STRUCTFIELD"><I>type</I></TT></TD><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="LITERAL">SDL_QUIT</TT></TD></TR></TBODY></TABLE><P></P></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN4637"></A><H2>Description</H2><P><SPANCLASS="STRUCTNAME">SDL_QuitEvent</SPAN> is a member of the <AHREF="sdlevent.html"><SPANCLASS="STRUCTNAME">SDL_Event</SPAN></A> union and is used whan an event of type <TTCLASS="LITERAL">SDL_QUIT</TT> is reported.</P><P>As can be seen, the SDL_QuitEvent structure serves no useful purpose. The event itself, on the other hand, is very important. If you filter out or ignore a quit event then it is impossible for the user to close the window. On the other hand, if you do accept a quit event then the application window will be closed, and screen updates will still report success event though the application will no longer be visible.</P><DIVCLASS="NOTE"><BLOCKQUOTECLASS="NOTE"><P><B>Note: </B>The macro <TTCLASS="FUNCTION">SDL_QuitRequested</TT> will return non-zero if a quit event is pending</P></BLOCKQUOTE></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN4648"></A><H2>See Also</H2><P><AHREF="sdlevent.html"><SPANCLASS="STRUCTNAME">SDL_Event</SPAN></A>,<AHREF="sdlseteventfilter.html"><TTCLASS="FUNCTION">SDL_SetEventFilter</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="sdluserevent.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="sdlkeysym.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">SDL_UserEvent</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="eventstructures.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">SDL_keysym</TD></TR></TABLE></DIV></BODY></HTML>
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