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<HTML><HEAD><TITLE>Xlib Programming Manual: Locating a Point or a Rectangle in a Region</TITLE></HEAD><BODY><H1 ALIGN=center>16.5.5 Locating a Point or a Rectangle in a Region</H1>To determine if a specified point resides in a specified region, use<B><A HREF="XPointInRegion.html">XPointInRegion()</A></B>.<P>To determine if a specified rectangle is inside a region, use<B><A HREF="XRectInRegion.html">XRectInRegion()</A></B>.<H5 ALIGN=right><I>Next: <A HREF="../using-cut-buffers.html">Using Cut Buffers</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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