In order for keystrokes to be recognized, the application you are sending the keystrokes to should have active focus. Not all applications support emulated keystrokes however. Try sending your keystrokes to an editor first to see if they work there and if they do, perhaps Rekordbox does not support them. In your case since you are sending control characters, maybe switch them to printable characters when sending to a text editor.
Steve Caldwell
Bome Customer Care
Also available for paid consulting services: bome@sniz.biz
This method is recommended by Pioneer to manually control the light deck selection from the XZ controller, but the only give the instructions for a Mac, and simple say “follow the above instructions using midikey2key for PC”. I don’t like midikey2key though.
Forgive my ignorance, but what would be a good example of a printable character, and what editor should I try?