Passing sensor data to C++ GUI

[vizmaster]

I have a GUI written in C++ that sends a filename to a Vizard script using a mailslot. (Thanks for the code). Now I would like to send sensor data back to the GUI for the Vizard script. Should I use the same mailslot and then break up the message in the GUI (since it is a test string). OR should I use/move to viz.NETWORK? Which prevents reading and writing at the same time?