NAME
XFontSetExtents - XFontSetExtents structure
STRUCTURES
The
structure contains:
typedef struct {
XRectangle max_ink_extent; / over all drawable characters */
XRectangle max_logical_extent; / over all drawable characters */
} XFontSetExtents;
The
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
and
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(3X11),
XExtentsOfFontSet(3X11),
XFontsOfFontSet(3X11)
