void pango_extents_to_pixels ( PangoRectangle* inclusive, PangoRectangle* nearest )
Converts extents from Pango units to device units.
The conversion is done by dividing by the
PANGO_SCALE factor and
inclusive rectangle is converted by flooring the x/y coordinates
and extending width/height, such that the final rectangle completely
includes the original rectangle.
nearest rectangle is converted by rounding the coordinates
of the rectangle to the nearest device unit (pixel).
The rule to which argument to use is: if you want the resulting device-space
rectangle to completely contain the original rectangle, pass it in as
inclusive. If you want two touching-but-not-overlapping rectangles stay
touching-but-not-overlapping after rounding to device units, pass them in