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<HTML><HEAD><TITLE>Xlib Programming Manual: XUnionRectWithRegion</TITLE></HEAD><BODY><H1 ALIGN=center>XUnionRectWithRegion</H1><H2>Syntax</H2><!.IN "XUnionRectWithRegion" "" "@DEF@"><CODE><PRE>XUnionRectWithRegion(<B>rectangle</B>, <B>src_region</B>, <B>dest_region_return</B>) XRectangle *<B>rectangle</B>; Region <B>src_region</B>; Region <B>dest_region_return</B>;</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>rectangle</B><TD> Specifies the rectangle.<TR><TD> <B>src_region</B><TD> Specifies the source region to be used.<TR><TD> <B>dest_region_return</B><TD> Returns the destination region.</TABLE><H2>Description</H2>The<B>XUnionRectWithRegion()</B>function updates the destination region from a union of the specified rectangleand the specified source region.<H2>See also</H2><B><A HREF="XCreateRegion.html">XCreateRegion()</A></B>,<B><A HREF="../../graphics/drawing/XDrawRectangle.html">XDrawRectangle()</A></B>,<B><A HREF="XEmptyRegion.html">XEmptyRegion()</A></B>,<B><A HREF="XIntersectRegion.html">XIntersectRegion()</A></B>,<B><A HREF="XOffsetRegion.html">XOffsetRegion()</A></B>,<B><A HREF="XShrinkRegion.html">XShrinkRegion()</A></B>,<B><A HREF="XSubtractRegion.html">XSubtractRegion()</A></B>,<B><A HREF="XUnionRegion.html">XUnionRegion()</A></B>,<B><A HREF="XXorRegion.html">XXorRegion()</A></B>,"<A HREF="computing.html">Computing with 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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