How can a totalcross GUI in one container communicate with a cpp container on torizoncore?
Depends on how much you have exposed or wish to expose.
Some people like network services:
Others prefer shared memory
People who came down from the Big Machines, when Iron was Iron, would use a relational database and triggers on tables.
Many others like message queues
If you want to take a trip in the WayBack Machine, have each container own a serial port and run a NULL modem cable between them.
I have not been able to try this solution, however will check this and get back.
how did the tests go?