My purpose is similar but it's not the same because I want use these worlds in other programs and I think the solution is save the worlds in a text file.

I'm not sure you understand how programs interoperate, how information is transferred and so on. Please become familiar with the following concepts:

1)Programming library

2) API

3) Function call

Check this at least

http://en.wikipedia.org/wiki/Library_(computing)

or the same in spanish

http://es.wikipedia.org/wiki/Biblioteca_(programaci%C3%B3n)

Hi nsh, I understand how programs interoperate, but I don't know how I could save the recognition worlds and save them in a text file instead of that these worlds were printed in a terminal.

Thanks for your links.

Pablo

There are multiple ways to do that

1. Copy the output and paste it into the file in text editor

2. Redirect the output to a file with >

3. Use option during invocation to get the output stored in a file

4. Modify the application to write to file instead of printing