Done with Peter Cooper Beginning Ruby, what's next?

Just read Peter C.s Beginning Ruby, want to make programs that
communicate with other programs now.

First, thanks for taking time to read. I did some simple stuff like
create simple dungeon games with help of book but now I want to get into
creating programs that can take input from other programs, specifically.
For example I work with 3D modeling as a hobby and the software I use,
PhotoScanPro, gives models descriptions like size, shape, number of

One thing I am interested in is I want to create a program that with the
few clicks of a button will gather info from a model from PhotoScanPro
and send that info in an email to others. Any help much appreciated.