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XFontSetExtents(3)              XLIB FUNCTIONS              XFontSetExtents(3)

       XFontSetExtents - XFontSetExtents structure

       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 Xmb-
       TextExtents and XwcTextExtents for detailed semantics.

       The max_logical_extent member gives the maximum extent, over all draw-
       able characters, of the rectangles that specify minimum spacing to
       other graphical features, relative to a constant origin.  Other graphi-
       cal features drawn by the client, for example, a border surrounding the
       text, should not intersect this rectangle.  The max_logical_extent mem-
       ber 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.

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

X Version 11                     libX11 1.1.5               XFontSetExtents(3)