getLine
Retrieves a particular line from a PangoLayout.
Use the faster method@Pango.Layout.get_line_readonly if you do not plan to modify the contents of the line (glyphs, glyph widths, etc.).
Return
the requested PangoLayoutLine, or null if the index is out of range. This layout line can be ref'ed and retained, but will become invalid if changes are made to the PangoLayout.
Parameters
line
the index of a line, which must be between 0 and pango_layout_get_line_count(layout) - 1, inclusive.