Bool package:haskell-gi-base
Add a `${type gboolean}`-valued property to the given object class.
Information on a property of type `type gboolean` to be registered. A
property name consists of segments consisting of ASCII letters and
digits, separated by either the '-' or '_' character. The first
character of a property name must be a letter. Names which violate
these rules lead to undefined behaviour.
When creating and looking up a property, either separator can be used,
but they cannot be mixed. Using '-' is considerably more efficient and
in fact required when using property names as detail strings for
signals.
Beyond the name, properties have two more descriptive strings
associated with them, the nick, which should be suitable for
use as a label for the property in a property editor, and the
blurb, which should be a somewhat longer description,
suitable for e.g. a tooltip. The nick and blurb
should ideally be localized.
GType corresponding to gboolean.