Opening a device with "POS for .NET"
Hi.
I have a question about using "Microsoft POS for .NET". If this is not the right place, I apologize.
I have a line display that had been working fine. I then added more devices, using a usb hub and a serial-to-usb hub, which I had problems with, but finally I got the printer to work. Meanwhile the line display no longer works. I even unplugged all the other devices and just plugged in the display as the lone device into the native usb port, just like it had been before, but it doesn't help.
When I try to call Open() on the display, it fails with the error "Closed". This is really confusing. Of course it's closed, that's why I'm opening it. Does anyone have any idea what would cause this error? When I use the OPOS test tool provided by the manufacurer (Logic Controls), it is able to open/claim/enable the display and write to it just fine.
Thanks!

