"Luca Minuti" <lminuti@eid.it> writes: > I think that the use of the signal is not the only possible solution > for me. But I don't know others inter process comunication > tecnique. > > My program must do this: if someone make some change to the data > that the program manipulate other instance of the same program must > update their own view. How do you know the PID's of the other instances?