I have an RFID reader (USB) that will automatically fill in the active textbox (or any input field) with the data read from the card. This is working great. However, I would like to only allow this to function when the focus is on a specific textbox. For example I only want the user to have the card input to be read into the card info textbox, not the User Name textbox.
Is there a way to ignore or disable a port (USB) ony at certain times?
Thanks