ACCESSIBLE_ATTRIBUTE_UNDERLINE

An attribute for the underline style.

Possible values are:

• const@Gtk.ACCESSIBLE_ATTRIBUTE_UNDERLINE_NONE

• const@Gtk.ACCESSIBLE_ATTRIBUTE_UNDERLINE_SINGLE

• const@Gtk.ACCESSIBLE_ATTRIBUTE_UNDERLINE_DOUBLE

• const@Gtk.ACCESSIBLE_ATTRIBUTE_UNDERLINE_ERROR