OnLayoutKeyStroke doesn't work on iPad with Opticon bluetooth scanner
OnLayoutKeyStroke to trigger a script doesn't work on iPad with an Opticon bluetooth barcode scanner. It does work perfectly with Filemaker Pro 13 on a Laptop and a Honeywell scanner.
The Honeywell scanner is probably operating in "keyboard emulation mode" a standard setting for scanners connected to a regular computer using a USB connector. I would guess that your Opticon scanner does not function in keyboard emulation mode.