Gets the name of the D-Bus interface the method was invoked on.
If this method call is a property Get, Set or GetAll call that has
been redirected to the method call handler then
"org.freedesktop.DBus.Properties" will be returned. See
#GDBusInterfaceVTable for more information.
Return: A string. Do not free, it is owned by @invocation.
Gets the name of the D-Bus interface the method was invoked on.
If this method call is a property Get, Set or GetAll call that has been redirected to the method call handler then "org.freedesktop.DBus.Properties" will be returned. See #GDBusInterfaceVTable for more information.
Return: A string. Do not free, it is owned by @invocation.