Thank you for reply
I have done my own UsbAdc11.inc and it works
I have another question
When i open the device for the first time and if
unfortunately i try to reopen without closing it before,
i cannot neither close, neither open it. The only solution
i have is to stop /start my software.
So long as the application is still running the device should be able to be closed. If the application is exited before the device is closed then the handle to the device will have been lost and the device will need to be unplugged and reconnected.