How to use within an app?

[szabolor]

First of all I would like to thank you for droidplot project: it very simple but efficient to implement.
I'm planning to launch "droidplot" script from my app.
It's working, but just in a "blind-way": creating a script file with the command list; starting as a process "./droidplot command-list.plt"
But some error or warning message is remain hidden. (I can only deduce the error from the zero-sized png image)

So my question is how can I access droidplot from my app (Java) to get all output from it, and be able to send any input directly. ... just like in the ATE terminal.

Thank you in advance.