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<HTML><HEAD><TITLE>Xlib Programming Manual: XSetIOErrorHandler</TITLE></HEAD><BODY><H1 ALIGN=center>XSetIOErrorHandler</H1><H2>Syntax</H2><!.IN "XSetIOErrorHandler" "" "@DEF@"><CODE><PRE>int (*XSetIOErrorHandler(<B>handler</B>))() int (*<B>handler</B>)(<A HREF="../../display/opening.html#Display">Display</A> *);</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>handler</B><TD> Specifies the program's supplied error handler.</TABLE><H2>Description</H2>The<B>XSetIOErrorHandler()</B>sets the fatal I/O error handler.Xlib calls the program's supplied error handler if any sort of system callerror occurs (for example, the connection to the server was lost).This is assumed to be a fatal condition,and the called routine should not return.If the I/O error handler does return,the client process exits.<P>Note that the previous error handler is returned.<H2>See also</H2><B><A HREF="XDisplayName.html">XDisplayName()</A></B>,<B><A HREF="XGetErrorDatabaseText.html">XGetErrorDatabaseText()</A></B>,<B><A HREF="XGetErrorText.html">XGetErrorText()</A></B>,<B><A HREF="../../display/opening.html">XOpenDisplay()</A></B>,<B><A HREF="XSetErrorHandler.html">XSetErrorHandler()</A></B>,<B><A HREF="XSynchronize.html">XSynchronize()</A></B>,"<A HREF="default-handlers.html">Using the Default Error Handlers</A>".<HR><ADDRESS><A HREF="http://tronche.com/">Christophe Tronche</A>, <A HREF="mailto:ch.tronche@computer.org">ch.tronche@computer.org</A></ADDRESS></BODY></HTML>⌨️ 快捷键说明
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