Xft

XFT(3x)								      XFT(3x)



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  Exten-
       sion 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 list-
       ing 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(3x)