ardour { ["type"] = "Snippet", name = "portengine" } function factory () return function () a = Session:engine() print ("----- Port objects from Ardour's engine ----"); _, t = a:get_ports (ARDOUR.DataType("audio"), ARDOUR.PortList()) -- table 't' holds argument references. t[2] is the PortList for p in t[2]:iter() do print (p:name()) end print ("----- Port names queries from the backend ----"); _, t = a:get_backend_ports ("", ARDOUR.DataType("audio"), 0, C.StringVector()) -- table 't' holds argument references. t[4] is the StringVector for n in t[4]:iter() do print (n) end print ("----- Connections from the backend ----"); _, t = a:get_backend_ports ("", ARDOUR.DataType("audio"), ARDOUR.PortFlags.IsOutput, C.StringVector()) for n in t[4]:iter() do local printed_name = false; _, ct = a:get_connections (n, C.StringVector()) for c in ct[2]:iter() do if (not printed_name) then printed_name = true; print (n) end print (" ->", c) end end end end