XFontSetExtents(3X11)     XLIB FUNCTIONS    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 posi-
       tive.

       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, rela-
       tive to a constant origin.  See XmbTextExtents and XwcTex-
       tExtents 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, rela-
       tive 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 mini-
       mum inter-line spacing and the minimum area which must be
       allowed in a text field to draw a given number of arbi-
       trary 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), XFontsOf-
       FontSet(3X11)
       Xlib - C Language X Interface














X Version 11                Release 5                           1