xdrawrectangles.html
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<HTML><HEAD><TITLE>Xlib Programming Manual: XDrawRectangles</TITLE></HEAD><BODY><H1 ALIGN=center>XDrawRectangles</H1><H2>Syntax</H2><!.IN "XDrawRectangles" "" "@DEF@"><CODE><PRE>XDrawRectangles(<B>display</B>, <B>d</B>, <B>gc</B>, <B>rectangles</B>, <B>nrectangles</B>) <A HREF="../../display/opening.html#Display">Display</A> *<B>display</B>; Drawable <B>d</B>; <A HREF="../../GC/manipulating.html">GC</A> <B>gc</B>; <A HREF="./#XRectangle">XRectangle</A> <B>rectangles</B>[]; int <B>nrectangles</B>;</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>display</B><TD> Specifies the connection to the X server.<TR><TD> <B>d</B><TD> Specifies the drawable. <TR><TD> <B>gc</B><TD> Specifies the GC.<TR><TD> <B>rectangles</B><TD> Specifies an array of rectangles.<TR><TD> <B>nrectangles</B><TD> Specifies the number of rectangles in the array.</TABLE><H2>Description</H2>The<B>XDrawRectangles()</B>functions draw the outlines of the specified rectangles asif a five-point <B><A HREF="../../appendix/a.html#PolyLine">PolyLine</A></B>protocol request were specified for each rectangle:<PRE><CODE>[x,y] [x+width,y] [x+width,y+height] [x,y+height] [x,y]</PRE></CODE><P> For the specified rectangles, this function does not draw a pixel more than once.<B>XDrawRectangles()</B>draws the rectangles in the order listed in the array.If rectangles intersect,the intersecting pixels are drawn multiple times.<P>This function uses these GC components: <A HREF="../../GC/manipulating.html#function">function</A>, <A HREF="../../GC/manipulating.html#plane-mask">plane-mask</A>,<A HREF="../../GC/manipulating.html#line-width">line-width</A>,<A HREF="../../GC/manipulating.html#line-style">line-style</A>,<A HREF="../../GC/manipulating.html#cap-style">cap-style</A>,<A HREF="../../GC/manipulating.html#join-style">join-style</A>,<A HREF="../../GC/manipulating.html#fill-style">fill-style</A>,<A HREF="../../GC/manipulating.html#subwindow-mode">subwindow-mode</A>,<A HREF="../../GC/manipulating.html#clip-mask">clip-x-origin</A>,<A HREF="../../GC/manipulating.html#clip-mask">clip-y-origin</A>, and<A HREF="../../GC/manipulating.html#clip-mask">clip-mask</A>.It also uses these GC mode-dependent components: <A HREF="../../GC/manipulating.html#foreground">foreground</A>, <A HREF="../../GC/manipulating.html#background">background</A>,<A HREF="../../GC/manipulating.html#tile">tile</A>,<A HREF="../../GC/manipulating.html#stipple">stipple</A>,<A HREF="../../GC/manipulating.html#tile">tile-stipple-x-origin</A>,<A HREF="../../GC/manipulating.html#tile">tile-stipple-y-origin</A>,<A HREF="../../GC/manipulating.html#dashes">dash-offset</A>,and<A HREF="../../GC/manipulating.html#dashes">dash-list</A>.<P><B><A HREF="XDrawRectangle.html">XDrawRectangle()</A></B>can generate<B>BadDrawable</B> ,<B>BadGC</B> ,and<B>BadMatch</B> errors.<H2>Diagnostics</H2><TABLE><TR><TD><B>BadDrawable</B><TD>A value for a Drawable argument does not name a defined Window or Pixmap.<TR><TD><B>BadGC</B><TD>A value for a <B><A HREF="../GContext.html">GContext</A></B> argument does not name a defined <B><A HREF="../GContext.html">GContext</A></B>.<TR><TD><B>BadMatch</B><TD>An<B><A HREF="../../window/create.html#InputClass">InputOnly</A></B>window is used as a Drawable.<TR><TD><B>BadMatch</B><TD>Some argument or pair of arguments has the correct type and range but fails to match in some other way required by the request.</TABLE><H2>See also</H2><B><A HREF="XDrawArc.html">XDrawArc()</A></B>,<B><A HREF="XDrawRectangle.html">XDrawRectangle()</A></B>,<B><A HREF="XDrawPoint.html">XDrawPoint()</A></B>,"<A HREF="rectangles.html">Drawing Single and Multiple Rectangles</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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