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From: poser@csli.Stanford.EDU (Bill Poser)
Newsgroups: comp.windows.x
Subject: XTextExtents
Keywords: XTextExtents ascent descent
Message-ID: <13966@csli.Stanford.EDU>
Date: 6 Jun 90 23:05:19 GMT
Sender: poser@csli.Stanford.EDU (Bill Poser)
Organization: Center for the Study of Language and Information, Stanford U.
Lines: 19

I am having trouble with XTextExtents in X11R3. I give it a single
character in order to obtain information necessary to center the
character but, but the ascent, descent, lbearing, and rbearing returned
are all zero. Am I doing something wrong, or is there a bug in XTextExtents?

The relevant code fragment is:

   XCharStruct strprops;	/* Extent information */
   int dh;			/* Unused */
   int fa;			/* Unused */
   int fd;			/* Unused */

   extern XFontStruct *fontinfo;

   XTextExtents(fontinfo,w->m_type,1,&dh,&fa,&fd,&strprops);

where w->m_type is the character about which I want information.

						Bill