Indicates the single, bindable property that best represents the object.
Property.
Properties that have the defaultbind attribute must also have the bindable attribute. The defaultbind attribute cannot be specified on more than one property in a dispinterface.
This attribute is used by containers that have a user model that involves binding to an object rather than binding to a property of an object. An object can support data binding and not have this attribute.
FUNCFLAG_FDEFAULTBIND
VARFLAG_FDEFAULTBIND