x.pos
is outside the line,
index.
and trailing
will point to the very first or very last position
in the line. This determination is based on the resolved direction
of the paragraph; for example, if the resolved direction is
right-to-left, then an X position to the right of the line (after it)
results in 0 being stored in index.
and trailing
. An X position to the
left of the line results in index.
pointing to the (logical) last
grapheme in the line and trailing
being set to the number of characters
in that grapheme. The reverse is true for a left-to-right line.pangoLayoutLineXToIndex(object, x.pos)
object
x.pos
FALSE
if x.pos
was outside the line, TRUE
if insideindex
trailing