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<HTML><HEAD><TITLE>Xlib Programming Manual: XNoOp</TITLE></HEAD><BODY><H1 ALIGN=center>2.3. Generating a NoOperation Protocol Request</H1>To execute a <B><A HREF="../appendix/a.html#NoOperation">NoOperation</A></B>protocol request, use<B>XNoOp()</B>.<!.IN "XNoOp" "" "@DEF@"><H2>Syntax</H2><CODE><PRE>XNoOp(<B>display</B>) <A HREF="opening.html#Display">Display</A> *<B>display</B>;</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>display</B><TD> Specifies the connection to the X server.</TABLE><H2>Description</H2>The<B>XNoOp()</B>function sends a <B><A HREF="../appendix/a.html#NoOperation">NoOperation</A></B>protocol request to the X server,thereby exercising the connection.<H5 ALIGN=right><I>Next: <A HREF="XFree.html">Freeing Client-Created Data</A></I></H5><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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