XFontSetExtents(3X11)       X Version 11(Release 5)       XFontSetExtents(3X11)


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 XRectangles used to return font set metrics are the usual Xlib
      screen-oriented XRectangles, 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 which 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 which 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 inter-line spacing and the minimum area
      which 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 increase the string's extent by an amount which exceeds the
      font's max extent:

      max possible added extent = (max_extent * <total # chars>) - prev_string_extent

SEE ALSO
      XCreateFontSet(3X11), XExtentsOfFontSet(3X11), XFontsOfFontSet(3X11)
      Xlib - C Language X Interface
















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