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authorMatthieu Herrb <matthieu@cvs.openbsd.org>2007-03-19 22:15:04 +0000
committerMatthieu Herrb <matthieu@cvs.openbsd.org>2007-03-19 22:15:04 +0000
commit6901ea8c8cd52158d7928ed55ede96c84364ba0c (patch)
tree90bc450a39f7dfa746239a12aa73736f238491c5 /lib
parent66cbca7c95642f4fa7abceeb58a409f7a39bc744 (diff)
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-.\"
-.\" $Id: Xft.3,v 1.1 2006/11/25 17:21:39 matthieu Exp $
-.\"
-.\" Copyright © 2000 Keith Packard
-.\"
-.\" Permission to use, copy, modify, distribute, and sell this software and its
-.\" documentation for any purpose is hereby granted without fee, provided that
-.\" the above copyright notice appear in all copies and that both that
-.\" copyright notice and this permission notice appear in supporting
-.\" documentation, and that the name of Keith Packard not be used in
-.\" advertising or publicity pertaining to distribution of the software without
-.\" specific, written prior permission. Keith Packard makes no
-.\" representations about the suitability of this software for any purpose. It
-.\" is provided "as is" without express or implied warranty.
-.\"
-.\" KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
-.\" INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
-.\" EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
-.\" CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
-.\" DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
-.\" TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
-.\" PERFORMANCE OF THIS SOFTWARE.
-.\"
-.TH Xft 3 "Version 2.1.11" "Xft"
-.SH NAME
- Xft \- X FreeType interface library
-.SH DESCRIPTION
-.B Xft
-is a simple library designed to interface the FreeType rasterizer with the X
-Rendering Extension.
-This manual page barely scratches the surface of this library.
-.SH "HEADER FILE"
-.B #include <X11/Xft/Xft.h>
-.SH CONSTANTS
-.TP
-.B XFT_MAJOR
-is the major version number of
-.BR Xft .
-.TP
-.B XFT_MINOR
-is the minor version number of
-.BR Xft .
-.TP
-.B XFT_REVISION
-is the revision number of
-.BR Xft .
-.TP
-.B XFT_VERSION
-is
-.B XFT_MAJOR
-times 10000 (ten thousand), plus
-.B XFT_MINOR
-times 100, plus
-.BR XFT_REVISION .
-.TP
-.B XftVersion
-is an alias for
-.BR XFT_VERSION .
-.PP
-The following example illustrates how
-.BR Xft 's
-version constants might be used:
-.nf
- #if (XFT_VERSION >= 20107)
- (void) puts("Version 2.1.7 or later of the Xft library is in"
- " use.");
- #else
- (void) printf("Insufficient version of Xft (%d.%d.%d) installed;
- " need at least version 2.1.7.\(rsn", XFT_MAJOR,
- XFT_MINOR,
- XFT_REVISION);
- #endif
-.fi
-.\" I don't understand what these are for. -- BR, 2005-04-02
-.\" XFT_CORE used in xftname.c
-.\" XFT_RENDER used in xftdpy.c, xftfreetype.c, xftname.c
-.\" XFT_XLFD used in xftname.c, xftxlfd.c
-.\" XFT_MAX_GLYPH_MEMORY used in xftdpy.c, xftfreetype.c
-.\" XFT_MAX_UNREF_FONTS used in xftdpy.c
-.\" XFT_NMISSING used in xftcore.c, xftextent.c, xftglyphs.c,
-.\" xftrender.c
-.SH "DATA TYPES"
-.TP
-.B XftFont
-.nf
-typedef struct _XftFont {
- int ascent;
- int descent;
- int height;
- int max_advance_width;
- FcCharSet *charset;
- FcPattern *pattern;
-} XftFont;
-.fi
-An
-.B XftFont
-is the primary data structure of interest to programmers using
-.BR Xft ;
-it contains general font metrics and pointers to the Fontconfig
-character set and pattern associated with the font.
-The
-.B FcCharSet
-and
-.B FcPattern
-data types are defined by the Fontconfig library.
-.TP
-.B ""
-.BR XftFont s
-are populated with any of
-.BR XftFontOpen (),
-.BR XftFontOpenName (),
-.BR XftFontOpenXlfd (),
-.BR XftFontOpenInfo (),
-or
-.BR XftFontOpenPattern ().
-.BR XftFontCopy ()
-is used to duplicate
-.BR XftFont s,
-and
-.BR XftFontClose ()
-is used to mark an
-.B XftFont
-as unused.
-.BR XftFont s
-are internally allocated, reference-counted, and freed by
-.BR Xft ;
-the programmer does not ordinarily need to allocate or free storage
-for them.
-.TP
-.B ""
-.BR XftDrawGlyphs (),
-the
-.BR XftDrawString *()
-family,
-.BR XftDrawCharSpec (),
-and
-.BR XftDrawGlyphSpec ()
-use
-.BR XftFont s
-to render text to an
-.B XftDraw
-object, which may correspond to either a core X drawable or an X
-Rendering Extension drawable.
-.TP
-.B ""
-.BR XftGlyphExtents ()
-and the
-.BR XftTextExtents *()
-family are used to determine the extents (maximum dimensions) of an
-.BR XftFont .
-.TP
-.B ""
-An
-.BR XftFont 's
-glyph or character coverage can be determined with
-.BR XftFontCheckGlyph ()
-or
-.BR XftCharExists ().
-.BR XftCharIndex ()
-returns the
-.BR XftFont -specific
-character index corresponding to a given Unicode codepoint.
-.TP
-.B ""
-.BR XftGlyphRender (),
-.BR XftGlyphSpecRender (),
-.BR XftCharSpecRender (),
-and the
-.BR XftTextRender *()
-family use
-.BR XftFont s
-to draw into X Rendering Extension
-.B Picture
-structures.
-.B Note:
-.BR XftDrawGlyphs (),
-the
-.BR XftDrawString *()
-family,
-.BR XftDrawCharSpec (),
-and
-.BR XftDrawGlyphSpec ()
-provide a means of rendering fonts that is independent of the
-availability of the X Rendering Extension on the X server.
-.\" I'm not sure what these are for; they're used internally, but why
-.\" would any external users want them? -- BR, 2005-04-02
-.\" .BR XftLockFace()
-.\" .BR XftUnlockFace()
-.TP
-.B XftFontInfo
-is an opaque object that stores information about a font.
-.B XftFontInfo
-structures are created with
-.BR XftFontInfoCreate (),
-freed with
-.BR XftFontInfoDestroy (),
-and compared with
-.BR XftFontInfoEqual ().
-.B XftFontInfo
-objects are internally allocated and freed by
-.BR Xft ;
-the programmer does not ordinarily need to allocate or free storage
-for them.
-.TP
-.B ""
-Each
-.B XftFontInfo
-structure in use is associated with a unique identifier, which can be
-retrieved with
-.BR XftFontInfoHash ().
-An
-.B XftFont
-can be opened based on
-.B XftFontInfo
-data with
-.BR XftFontOpenInfo ().
-.TP
-.B XftColor
-.nf
-typedef struct _XftColor {
- unsigned long pixel;
- XRenderColor color;
-} XftColor;
-.fi
-An
-.B XftColor
-object permits text and other items to be rendered in a particular
-color (or the closest approximation offered by the X visual in use).
-The
-.B XRenderColor
-data type is defined by the X Render Extension library.
-.TP
-.B ""
-.BR XftColorAllocName ()
-and
-.BR XftColorAllocValue ()
-request a color allocation from the X server (if necessary) and
-initialize the members of
-.BR XftColor .
-.BR XftColorFree ()
-instructs the X server to free the color currently allocated for an
-.BR XftColor .
-.TP
-.B ""
-One an
-.B XftColor
-has been initialized,
-.BR XftDrawSrcPicture (),
-.BR XftDrawGlyphs (),
-the
-.BR XftDrawString *()
-family,
-.BR XftDrawCharSpec (),
-.BR XftDrawCharFontSpec (),
-.BR XftDrawGlyphSpec (),
-.BR XftDrawGlyphFontSpec (),
-and
-.BR XftDrawRect ()
-may be used to draw various objects using it.
-.TP
-.B XftDraw
-is an opaque object which holds information used to render to an X drawable
-using either the core protocol or the X Rendering extension.
-.TP
-.B ""
-.B XftDraw
-objects are created with any of
-.BR XftDrawCreate ()
-(which associates an
-.B XftDraw
-with an existing X drawable),
-.BR XftDrawCreateBitmap (),
-or
-.BR XftDrawCreateAlpha (),
-and destroyed with
-.BR XftDrawDestroy ().
-The X drawable associated with an
-.B XftDraw
-can be changed with
-.BR XftDrawChange ().
-.BR XftDraw s
-are internally allocated and freed by
-.BR Xft ;
-the programmer does not ordinarily need to allocate or free storage
-for them.
-.TP
-.B ""
-The X
-.BR Display ,
-.BR Drawable ,
-.BR Colormap ,
-and
-.BR Visual
-of an
-.B XftDraw
-can be queried with
-.BR XftDrawDisplay (),
-.BR XftDrawDrawable (),
-.BR XftDrawColormap (),
-and
-.BR XftDrawVisual (),
-respectively.
-The X Rendering Extension
-.B Picture
-associated with an
-.B XftDraw
-is returned by
-.BR XftDrawPicture ().
-.\" XftDrawSrcPicture
-.\" XftDrawGlyphs
-.\" XftDrawString*
-.\" XftDrawCharSpec
-.\" XftDrawCharFontSpec
-.\" XftDrawGlyphSpec
-.\" XftDrawGlyphFontSpec
-.\" XftDrawRect
-.\" XftDrawSetClip
-.\" XftDrawSetClipRectangles
-.\" XftDrawSetSubwindowMode
-.TP
-.B XftCharSpec
-.nf
-typedef struct _XftCharSpec {
- FcChar32 ucs4;
- short x;
- short y;
-} XftCharSpec;
-.fi
-.TP
-.B ""
-The
-.B FcChar32
-data type is defined by the Fontconfig library.
-.\" XftDrawCharSpec
-.\" XftCharSpecRender
-.TP
-.B XftCharFontSpec
-.nf
-typedef struct _XftCharFontSpec {
- XftFont *font;
- FcChar32 ucs4;
- short x;
- short y;
-} XftCharFontSpec;
-.fi
-.TP
-.B ""
-The
-.B FcChar32
-data type is defined by the Fontconfig library.
-.\" XftDrawCharFontSpec
-.\" XftCharFontSpecRender
-.TP
-.B XftGlyphSpec
-.nf
-typedef struct _XftGlyphSpec {
- FT_UInt glyph;
- short x;
- short y;
-} XftGlyphSpec;
-.fi
-.TP
-.B ""
-The
-.B FT_UInt
-data type is defined by the FreeType library.
-.\" XftDrawGlyphSpec
-.\" XftGlyphSpecRender
-.TP
-.B XftGlyphFontSpec
-.nf
-typedef struct _XftGlyphFontSpec {
- XftFont *font;
- FT_UInt glyph;
- short x;
- short y;
-} XftGlyphFontSpec;
-.fi
-.TP
-.B ""
-The
-.B FT_UInt
-data type is defined by the FreeType library.
-.\" XftDrawGlyphFontSpec
-.\" XftGlyphFontSpecRender
-.SH FUNCTIONS
-.SS "Opening and Matching Fonts"
-.nf
-\fBXftFont *\fR
-\fBXftFontOpen (Display *\fIdpy\fB,\fR
-\fB int \fIscreen\fB,\fR
-\fB ...);\fR\fR
-.fi
-.B XftFontOpen
-takes a list of pattern element triples of the form
-.IR field , " type" , " value"
-(terminated with a NULL), matches that pattern against the available fonts,
-and opens the matching font, sizing it correctly for screen number
-.I screen
-on display
-.IR dpy .
-The
-.B Display
-data type is defined by the X11 library.
-Returns NULL if no match is found.
-.PP
-Example:
-.nf
- font = XftFontOpen (dpy, screen,
- XFT_FAMILY, XftTypeString, "charter",
- XFT_SIZE, XftTypeDouble, 12.0,
- NULL);
-.fi
-This opens the \(lqcharter\(rq font at 12 points.
-The point size is automatically converted to the correct pixel size based
-on the resolution of the monitor.
-.PP
-.nf
-\fBXftFont *\fR
-\fBXftFontOpenName (Display *\fIdpy\fB,\fR
-\fB int \fIscreen\fB,\fR
-\fB unsigned char *\fIname\fB);\fR
-.fi
-.B XftFontOpenName
-behaves as
-.B XftFontOpen
-does, except that it takes a Fontconfig pattern string (which is passed to
-the Fontconfig library's
-.BR FcNameParse ()
-function).
-.PP
-.nf
-\fBXftFont *\fR
-\fBXftFontOpenXlfd (Display *\fIdpy\fB,\fR
-\fB int \fIscreen\fB,\fR
-\fB unsigned char *\fIxlfd\fB)\fR
-.fi
-.B XftFontOpenXlfd
-behaves as
-.B XftFontOpen
-does, except that it takes a string containing an X Logical Font
-Description (XLFD).
-.PP
-.nf
-\fBFcPattern *\fR
-\fBXftFontMatch (Display *\fIdpy\fB,\fR
-\fB int \fIscreen\fB,\fR
-\fB FcPattern *\fIpattern\fB,\fR
-\fB FcResult *\fIresult\fB);\fR
-.fi
-Also used internally by the
-.BR XftFontOpen *
-functions,
-.B XftFontMatch
-can also be used directly to determine the Fontconfig font pattern
-resulting from an Xft font open request.
-The
-.B FcPattern
-and
-.B FcResult
-data types are defined by the Fontconfig library.
-.SS "Determining the Pixel Extents of a Text String"
-.nf
-\fBvoid\fR
-\fBXftTextExtents8 (Display *\fIdpy\fB,\fR
-\fB XftFont *\fIfont\fB,\fR
-\fB FcChar8 *\fIstring\fB,\fR
-\fB int \fIlen\fB,\fR
-\fB XGlyphInfo *\fIextents\fB);\fR
-.fi
-.B XftTextExtents8
-computes the pixel extents on display
-.I dpy
-of no more than
-.I len
-glyphs of a
-.I string
-consisting of eight-bit characters when drawn with
-.IR font ,
-storing them in
-.IR extents .
-The
-.B FcChar8
-data type is defined by the Fontconfig library, and the
-.B XGlyphInfo
-data type is defined by the X Rendering Extension library.
-.PP
-.nf
-\fBvoid\fR
-\fBXftTextExtents16 (Display *\fIdpy\fB,\fR
-\fB XftFont *\fIfont\fB,\fR
-\fB FcChar16 *\fIstring\fB,\fR
-\fB int \fIlen\fB,\fR
-\fB XGlyphInfo *\fIextents\fB);\fR
-.fi
-.B XftTextExtents16
-computes the pixel extents on display
-.I dpy
-of no more than
-.I len
-glyphs of a
-.I string
-consisting of sixteen-bit characters when drawn with
-.IR font ,
-storing them in
-.IR extents .
-The
-.B FcChar16
-data type is defined by the Fontconfig library, and the
-.B XGlyphInfo
-data type is defined by the X Rendering Extension library.
-.PP
-.nf
-\fBvoid\fR
-\fBXftTextExtents32 (Display *\fIdpy\fB,\fR
-\fB XftFont *\fIfont\fB,\fR
-\fB FcChar32 *\fIstring\fB,\fR
-\fB int \fIlen\fB,\fR
-\fB XGlyphInfo *\fIextents\fB);\fR
-.fi
-.B XftTextExtents32
-computes the pixel extents on display
-.I dpy
-of no more than
-.I len
-glyphs of a
-.I string
-consisting of thirty-two-bit characters when drawn with
-.IR font ,
-storing them in
-.IR extents .
-The
-.B FcChar32
-data type is defined by the Fontconfig library, and the
-.B XGlyphInfo
-data type is defined by the X Rendering Extension library.
-.PP
-.nf
-\fBvoid\fR
-\fBXftTextExtentsUtf8 (Display *\fIdpy\fB,\fR
-\fB XftFont *\fIfont\fB,\fR
-\fB FcChar8 *\fIstring\fB,\fR
-\fB int \fIlen\fB,\fR
-\fB XGlyphInfo *\fIextents\fB);\fR
-.fi
-.B XftTextExtentsUtf8
-computes the pixel extents on display
-.I dpy
-of no more than
-.I len
-bytes of a UTF-8 encoded
-.I string
-when drawn with
-.IR font ,
-storing them in
-.IR extents .
-The
-.B XGlyphInfo
-data type is defined by the X Rendering Extension library.
-.PP
-.nf
-\fBvoid\fR
-\fBXftTextExtentsUtf16 (Display *\fIdpy\fB,\fR
-\fB XftFont *\fIfont\fB,\fR
-\fB FcChar8 *\fIstring\fB,\fR
-\fB FcEndian \fIendian\fB,\fR
-\fB int \fIlen\fB,\fR
-\fB XGlyphInfo *\fIextents\fB);\fR
-.fi
-.B XftTextExtentsUtf16
-computes the pixel extents on display
-.I dpy
-of no more than
-.I len
-bytes of a UTF-16LE- or UTF-16BE-encoded
-.I string
-when drawn with
-.IR font ,
-storing them in
-.IR extents .
-The endianness of
-.I string
-must be specified in
-.IR endian .
-The
-.B FcEndian
-data type is defined by the Fontconfig library, and the
-.B XGlyphInfo
-data type is defined by the X Rendering Extension library.
-.PP
-.nf
-\fBvoid\fR
-\fBXftGlyphExtents (Display *\fIdpy\fB,\fR
-\fB XftFont *\fIfont\fB,\fR
-\fB FT_UInt *\fIglyphs\fB,\fR
-\fB int \fInglyphs\fB,\fR
-\fB XGlyphInfo *\fIextents\fB);\fR
-.fi
-Also used internally by the
-.BR XftTextExtents *
-functions,
-.B XftGlyphExtents
-computes the pixel extents on display
-.I dpy
-of no more than
-.I nglyphs
-in the array
-.I glyphs
-drawn with
-.IR font ,
-storing them in
-.IR extents .
-The
-.B FT_UInt
-data type is defined by the FreeType library, and the
-.B XGlyphInfo
-data type is defined by the X Rendering Extension library.
-.SS "Drawing Strings (and Other Things)"
-.nf
-\fBXftDraw *\fR
-\fBXftDrawCreate (Display *\fIdpy\fB,\fR
-\fB Drawable \fIdrawable\fB,\fR
-\fB Visual *\fIvisual\fB,\fR
-\fB Colormap \fIcolormap\fB);\fR
-.fi
-.B XftDrawCreate
-creates a structure that can be used to render text and rectangles using
-the specified
-.IR drawable ,
-.IR visual ,
-and
-.I colormap
-on
-.IR display .
-The
-.BR Drawable ,
-.BR Visual ,
-and
-.B Colormap
-data types are defined by the X11 library.
-.PP
-.nf
-\fBXftDraw *\fR
-\fBXftDrawCreateBitmap (Display *\fIdpy\fB,\fR
-\fB Pixmap \fIbitmap\fB);\fR
-.fi
-.B XftDrawCreateBitmap
-behaves as
-.BR XftDrawCreate ,
-except it uses an X pixmap of color depth 1 instead of an X drawable.
-The
-.B Pixmap
-data type is defined by the X11 library.
-.PP
-.nf
-\fBXftDraw *\fR
-\fBXftDrawCreateAlpha (Display *\fIdpy\fB,\fR
-\fB Pixmap \fIpixmap\fB,\fR
-\fB int \fIdepth\fB);\fR
-.fi
-.B XftDrawCreateAlpha
-behaves as
-.BR XftDrawCreate ,
-except it uses an X pixmap of color depth
-.I depth
-instead of an X drawable.
-The
-.B Pixmap
-data type is defined by the X11 library.
-.PP
-.nf
-\fBvoid\fR
-\fBXftDrawChange (XftDraw *\fIdraw\fB,\fR
-\fB Drawable \fIdrawable\fB);\fR
-.fi
-.B XftDrawChange
-changes the X drawable association of the existing Xft draw object
-.I draw
-from its current value to
-.IR drawable .
-.PP
-.nf
-\fBDisplay *\fR
-\fBXftDrawDisplay (XftDraw *\fIdraw\fB);\fR
-.fi
-.B XftDrawDisplay
-returns a pointer to the display associated with the Xft draw object
-.IR draw .
-.PP
-.nf
-\fBDrawable\fR
-\fBXftDrawDrawable (XftDraw *\fIdraw\fB);\fR
-.fi
-.B XftDrawDrawable
-returns the X drawable associated with the Xft draw object
-.IR draw .
-.PP
-.nf
-\fBColormap\fR
-\fBXftDrawColormap (XftDraw *\fIdraw\fB);\fR
-.fi
-.B XftDrawColormap
-returns the colormap associatied with the Xft draw object
-.IR draw .
-.PP
-.nf
-\fBVisual *\fR
-\fBXftDrawVisual (XftDraw *\fIdraw\fB);\fR
-.fi
-.B XftDrawVisual
-returns a pointer to the visual associated with the Xft draw object
-.IR draw .
-.PP
-.nf
-\fBPicture\fR
-\fBXftDrawPicture (XftDraw *\fIdraw\fB);\fR
-.fi
-.B XftDrawPicture
-returns the picture associated with the Xft draw object
-.IR draw .
-If the the X server does not support the X Rendering Extension, 0 is
-returned.
-.PP
-.nf
-\fBPicture\fR
-\fBXftDrawSrcPicture (XftDraw *\fIdraw\fB,\fR
-\fB XftColor *\fIcolor\fB);\fR
-.fi
-.\" Unfortunately, I'm not quite sure what this does. I think it is the gizmo
-.\" that is used to create an Xrender Picture object so that glyphs can be
-.\" drawn in the XftDraw object
-.\" .I draw
-.\" using the specified
-.\" .IR color .
-.\" -- BR, 2005-04-02
-This function is never called if the X server doesn't support the X
-Rendering Extension; instead,
-.B XftGlyphCore
-is used.
-.PP
-.nf
-\fBvoid\fR
-\fBXftDrawDestroy (XftDraw *\fIdraw\fB);\fR
-.fi
-.B XftDrawDestroy
-destroys
-.I draw
-(created by one of the
-.B XftCreate
-functions) and frees the memory that was allocated for it.
-.PP
-.nf
-\fBvoid\fR
-\fBXftDrawString8 (XftDraw *\fId\fB,\fR
-\fB XRenderColor *\fIcolor\fB,\fR
-\fB XftFont *\fIfont\fB,\fR
-\fB int \fIx\fB,\fR
-\fB int \fIy\fB,\fR
-\fB unsigned char *\fIstring\fB,\fR
-\fB int \fIlen\fB);\fR
-.fi
-.B XftDrawString8
-draws no more than
-.I len
-glyphs of
-.I string
-to Xft drawable
-.I d
-using
-.I font
-in
-.I color
-at position
-.IR x , " y" .
-The
-.B XRenderColor
-data type is defined by the X Rendering Extension library.
-.PP
-.nf
-\fBvoid\fR
-\fBXftDrawRect (XftDraw *\fId\fB,\fR
-\fB XRenderColor *\fIcolor\fB,\fR
-\fB int \fIx\fB,\fR
-\fB int \fIy\fB,\fR
-\fB unsigned int \fIwidth\fB,\fR
-\fB unsigned int \fIheight\fB);\fR
-.fi
-.B XftDrawRect
-draws a solid rectangle of the specified
-.IR color ,
-.IR width ,
-and
-.I height
-at position
-.IR x , " y"
-to Xft drawable
-.IR d .
-.SH COMPATIBILITY
-As of version 2,
-.B Xft
-has become relatively stable and is expected to retain source and binary
-compatibility in future releases.
-.PP
-.B Xft
-does provide a compatibility interface to its previous major version,
-Xft
-.RI 1. x ,
-described below.
-.SS "Xft 1.x Compatibility Header File"
-.B #include <X11/Xft/XftCompat.h>
-.\" .SS "Xft 1.x Compatibility Constants"
-.SS "Xft 1.x Compatibility Data Types"
-.TP
-.B XftPattern
-holds a set of names with associated value lists; each name refers to a
-property of a font.
-.BR XftPattern s
-are used as inputs to the matching code as well as holding information
-about specific fonts.
-.TP
-.B XftFontSet
-contains a list of
-.BR XftPattern s.
-Internally,
-.B Xft
-uses this data structure to hold sets of fonts.
-Externally,
-.B Xft
-returns the results of listing fonts in this format.
-.TP
-.B XftObjectSet
-holds a set of names and is used to specify which fields from fonts are
-placed in the the list of returned patterns when listing fonts.
-.\" .SS "Xft 1.x Compatibility Functions"
-.SH AUTHOR
-Keith Packard
-.SH "SEE ALSO"
-.I Fontconfig Developers Reference
-.br
-.I FreeType API Reference
-.br
-.I Xlib \- C Language Interface
-.\" Set Vim modeline; textwidth is 70 to account for the extra margin
-.\" padding that man (on Debian GNU/Linux) does for output to
-.\" terminals (7 spaces on the left, 2 on the right), so that we don't
-.\" go past 80 columns total, particularly in .nf/.fi regions.
-.\" vim:set ai et sts=4 sw=4 tw=70: