getLayout
Gets the PangoLayout
used to display the label.
The layout is useful to e.g. convert text positions to pixel positions, in combination with method@Gtk.Label.get_layout_offsets. The returned layout is owned by the @label so need not be freed by the caller. The @label is free to recreate its layout at any time, so it should be considered read-only.
Return
the class@Pango.Layout for this label