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<HTML><HEAD><TITLE>Xlib Programming Manual: Display Functions</TITLE></HEAD><BODY><H1 ALIGN=center>Chapter 2: Display Functions</H1>Before your program can use a display, you must establish a connectionto the X server.Once you have established a connection,you then can use the Xlib macros and functions discussed in this chapterto return information about the display.This chapter discusses how to:<UL><P><LI><A HREF="opening.html">Open (connect to) the display</A><P><LI><A HREF="information.html">Obtain information</A> about the display, image format, and screen<P><LI><A HREF="XFree.html">Free client-created data</A><P><LI><A HREF="closing.html">Close (disconnect from) a display</A></UL><P>The chapter concludes with a general discussion of whatoccurs when the connection to the X server is closed.<H5 ALIGN=right><I>Next: <A HREF="opening.html">Opening the Display</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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