NAME

       XFontSetExtents - XFontSetExtents structure

STRUCTURES

       The XFontSetExtents structure contains:

       typedef struct {
               XRectangle max_ink_extent;      /* over all drawable characters */
               XRectangle max_logical_extent;  /* over all drawable characters */
       } XFontSetExtents;

       The  XRectangle  structures  used  to  return  font set metrics are the usual Xlib screen-
       oriented rectangles with x, y giving the upper left corner, and width  and  height  always
       positive.

       The  max_ink_extent  member gives the maximum extent, over all drawable characters, of the
       rectangles that bound the character glyph image drawn in the foreground color, relative to
       a constant origin.  See XmbTextExtents and XwcTextExtents for detailed semantics.

       The  max_logical_extent  member gives the maximum extent, over all drawable characters, of
       the rectangles that specify minimum spacing to other graphical  features,  relative  to  a
       constant  origin.   Other  graphical  features  drawn by the client, for example, a border
       surrounding the text, should not intersect this rectangle.  The max_logical_extent  member
       should  be  used  to  compute  minimum interline spacing and the minimum area that must be
       allowed in a text field to draw a given number of arbitrary characters.

       Due to context-dependent rendering, appending a given character to a string may change the
       string's extent by an amount other than that character's individual extent.

SEE ALSO

       XCreateFontSet(3), XExtentsOfFontSet(3), XFontsOfFontSet(3)
       Xlib - C Language X Interface