void pango_layout_iter_get_line_yrange ( PangoLayoutIter* iter, int* y0_, int* y1_ )
Divides the vertical space in the
PangoLayout being iterated over
between the lines in the layout, and returns the space belonging to
the current line.
A line’s range includes the line’s logical extents. plus half of the
spacing above and below the line, if
has been called to set layout spacing. The Y positions are in layout
coordinates (origin at top left of the entire layout).
Note: Since 1.44, Pango uses line heights for placing lines, and there may be gaps between the ranges returned by this function.