g. to take some action if some part of the label is clicked. Of course you will need to create a
EventBox to receive the events, and pack the label inside it, since labels are
windowless (they return false from
get_has_window). Remember when using the Layout functions you need to convert to and
from pixels using
PANGO_PIXELS or SCALE.
location to store X offset of layout, or null
location to store Y offset of layout, or null