DragonFly On-Line Manual Pages

XFontSetExtents(3)              XLIB FUNCTIONS              XFontSetExtents(3)

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

X Version 11                     libX11 1.8.6               XFontSetExtents(3)