Xft(3)

NAME

        Xft - X FreeType interface library

DESCRIPTION

       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.

DATATYPES

       XftPattern  holds a set of names with associated value lists; each name
       refers to a property of a font.  XftPatterns are used as inputs to  the
       matching code as well as holding information about specific fonts.

       XftFont  contains general font metrics and a pointer to either the core
       XFontStruct data or a structure holding FreeType and X Render Extension
       data.

       XftFontStruct contains information about FreeType fonts used with the X
       Render Extension.

       XftFontSet contains a list of XftPatterns.  Internally  Xft  uses  this
       data  structure  to  hold  sets  of fonts.  Externally, Xft returns the
       results of listing fonts in this format.

       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.

       XftDraw is an opaque object which holds information used to  render  to
       an  X drawable using either core protocol or the X Rendering extension.

FUNCTIONS

       XftFont *
       XftFontOpen (Display *dpy, int screen, ...);
       XftFontOpen takes a list of pattern elements of the form (field,  type,
       value)  terminated with a NULL, matches that pattern against the avail-
       able fonts and opens the matching font.

       Example:
            font = XftFontOpen (dpy, scr,                    XFT_FAMILY,  Xft-
       TypeString,   "charter",                      XFT_SIZE,  XftTypeDouble,
       12.0,                    NULL);

       This opens the charter font at 12 points.  The point size is  automati-
       cally  converted  to  the correct pixel size based on the resolution of
       the monitor.

       void
       XftTextExtents8 (Display *dpy,
                  XftFont  *font,
                  unsigned char  *string,
                  int      len,
                  XGlyphInfo    *extents);
       XftTextExtents8 computes the pixel extents of "string" when drawn  with
       "font".

       XftDraw *
       XftDrawCreate (Display   *dpy,
                   Drawable  drawable,
                   Visual    *visual,
                   Colormap  colormap);
       XftDrawCreate  creates  a structure that can be used to render text and
       rectangles to the screen.

       void
       XftDrawString8 (XftDraw       *d,
                 XRenderColor   *color,
                 XftFont        *font,
                 int       x,
                 int       y,
                 unsigned char  *string,
                 int       len);
       XftDrawString8 draws "string" using "font" in "color" at "x, y".

       void
       XftDrawRect (XftDraw         *d,
                 XRenderColor   *color,
                 int      x,
                 int      y,
                 unsigned int   width,
                 unsigned int   height);
       XftDrawRect fills a solid rectangle in the specified color.

COMPATIBILITY

       As of version 2, Xft has become relatively stable and  is  expected  to
       retain source and binary compatibility in future releases.

AUTHOR

       Keith Packard

X.Org                            Version 6.8.2                          XFT(3)