yes, now I know how I have to add the arguments to the process and how I have to connect it to the signal and the slot and start it. And also is more clear why I have to wait to read from the process.
But now i have one question, what about if what I want to do is to ask something to the user of the program and then read the answer from the gui?
As I can guess, I have to start the process in the same way as before, and then create another function in the same way as onProcessReadyRead() and inside this function is where I have to read the value, isn't It?
thanks again.