This template creates an Universal Network Objects IDL file, which is a file with the .idl extension. The name you specify is used as the file name. For example, if you specify Hello, a file named Hello.idl is created.

The UNO IDL is an idl (interface description language) which is similar to the corba idl. Idl is a language to describe interfaces and types independently of any programming language and hardware plattform.