interfaceFindProperty
Find the #GParamSpec with the given name for an interface. Generally, the interface vtable passed in as @g_iface will be the default vtable from g_type_default_interface_ref(), or, if you know the interface has already been loaded, g_type_default_interface_peek().
Return
the #GParamSpec for the property of the interface with the name @property_name, or null if no such property exists.
Since
2.4
Parameters
gIface
any interface vtable for the interface, or the default vtable for the interface
propertyName
name of a property to look up.