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<HTML><HEAD><TITLE>Xlib Programming Manual: XDrawString</TITLE></HEAD><BODY><H1 ALIGN=center>XDrawString</H1><H2>Syntax</H2><!.IN "XDrawString" "" "@DEF@"><CODE><PRE>XDrawString(<B>display</B>, <B>d</B>, <B>gc</B>, <B>x</B>, <B>y</B>, <B>string</B>, <B>length</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>; int <B>x</B>, <B>y</B>; char *<B>string</B>; int <B>length</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>x</B><BR> <B>y</B><TD> Specify the x and y coordinates, which are relative to the origin of the specified drawable and define the origin of the first character.<TR><TD> <B>string</B><TD> Specifies the character string.<TR><TD> <B>length</B><TD> Specifies the number of characters in the string argument.</TABLE><H2>Description</H2>Each character image, as defined by the font in the GC, is treated as anadditional mask for a fill operation on the drawable.The drawable is modified only where the font character has a bit set to 1.<P>Both functions use 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#fill-style">fill-style</A>,<A HREF="../../GC/manipulating.html">font</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>.They also use 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>,and<A HREF="../../GC/manipulating.html#tile">tile-stipple-y-origin</A>.<P><B>XDrawString()</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="../../my-own/gcontext.html">GContext</A></B> argument does not name a defined <B><A HREF="../../my-own/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="XDrawImageString.html">XDrawImageString()</A></B>,<B><A HREF="../font-metrics/XLoadFont.html">XLoadFont()</A></B>,<B><A HREF="XDrawString16.html">XDrawString16()</A></B>,<B><A HREF="XDrawText.html">XDrawText()</A></B>,"<A HREF="characters.html">Drawing Text Characters</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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