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<HTML><HEAD><TITLE>Xlib Programming Manual: XDrawText16</TITLE></HEAD><BODY><H1 ALIGN=center>XDrawText16</H1><H2>Syntax</H2><!.IN "XDrawText16" "" "@DEF@"><CODE><PRE>XDrawText16(<B>display</B>, <B>d</B>, <B>gc</B>, <B>x</B>, <B>y</B>, <B>items</B>, <B>nitems</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>; <A HREF="./#XTextItem16">XTextItem16</A> *<B>items</B>; int <B>nitems</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>items</B><TD> Specifies an array of text items.<TR><TD> <B>nitems</B><TD> Specifies the number of text items in the array.</TABLE><H2>Description</H2>The<B>XDrawText16()</B>function is similar to<B><A HREF="XDrawText.html">XDrawText()</A></B>except that it uses 2-byte or 16-bit characters.Both functions allow complex spacing and font shifts between counted strings.<P>Each text item is processed in turn.A font member other than <B>None</B>in an item causes the font to be stored in the GCand used for subsequent text. A text element delta specifies an additional changein the position along the x axis before the string is drawn. The delta is always added to the character originand is not dependent on any characteristics of the font.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.If a text item generates a<B>BadFont</B>error, the previous text items may have been drawn.<P>For fonts defined with linear indexing rather than 2-byte matrix indexing,each <A HREF="../font-metrics/#XChar2b">XChar2b</A>structure is interpreted as a 16-bit number with byte1 as the most-significant byte.<P>The 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#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>.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>, and <A HREF="../../GC/manipulating.html#tile">tile-stipple-y-origin</A>.<P><B>XDrawText16()</B>can generate<B>BadDrawable</B> ,<B>BadFont</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>BadFont</B><TD>A value for a font argument does not name a defined font (or, in some cases, <B><A HREF="../GContext.html">GContext</A></B>).<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="XDrawText.html">XDrawText()</A></B>,<B><A HREF="XDrawImageString.html">XDrawImageString()</A></B>,<B><A HREF="../font-metrics/XLoadFont.html">XLoadFont()</A></B>,<B><A HREF="XDrawString.html">XDrawString()</A></B>,"<A HREF="complex.html">Drawing Complex Text</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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