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<HTML><HEAD><TITLE>Xlib Programming Manual: XSetRegion</TITLE></HEAD><BODY><H1 ALIGN=center>XSetRegion</H1><H2>Syntax</H2><!.IN "XSetRegion" "" "@DEF@"><CODE><PRE>XSetRegion(<B>display</B>, <B>gc</B>, <B>r</B>) <A HREF="../../display/opening.html#Display">Display</A> *<B>display</B>; <A HREF="../../GC/manipulating.html">GC</A> <B>gc</B>; <A HREF="./">Region</A> <B>r</B>;</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>display</B><TD> Specifies the connection to the X server.<TR><TD> <B>gc</B><TD> Specifies the GC.<TR><TD> <B>r</B><TD> Specifies the region.</TABLE><H2>Description</H2>The<B><A HREF="XSetRegion.html">XSetRegion()</A></B>function sets the <A HREF="../../GC/manipulating.html#clip-mask">clip-mask</A> in the GC to the specified region.The region is specified relative to the drawable's origin.The resulting GC clip origin is implementation dependent.Once it is set in the GC,the region can be destroyed.<H2>See also</H2><B><A HREF="XCreateRegion.html">XCreateRegion()</A></B>,<B><A HREF="XDestroyRegion.html">XDestroyRegion()</A></B>,<B><A HREF="XEmptyRegion.html">XEmptyRegion()</A></B>,<B><A HREF="XIntersectRegion.html">XIntersectRegion()</A></B>,"<A HREF="creating-copying-destroying.html">Creating, Copying, or Destroying Regions</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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