the type id of the GObject subtype to instantiate
the name of the first property
the value of the first property, followed optionally by more name/value pairs, followed by NULL
a new instance of object_type
ConstructionException GTK+ fails to create the object.
Creates a new instance of a GObject subtype and sets its properties.
Construction parameters (see G_PARAM_CONSTRUCT, G_PARAM_CONSTRUCT_ONLY) which are not explicitly specified are set to their default values.