Release 10.1A: OpenEdge Development:
Web Services

Dedicated Progress 4GL data types

The COM-HANDLE, RECID, ROWID, and WIDGET-HANDLE 4GL data types are not meaningful outside the Progress 4GL environment. You can obtain their values from a Progress procedure (through one Web service method) and pass them back to another Progress procedure (through another Web service method), but there is no other practical use for them on the client side.