I installed a virtual camera driver (eg, Canon's EOS camera driver) and set that camera as the default. If any program starts up the camera unexpectedly, they

I installed a virtual camera driver (eg, Canon's EOS camera driver) and set that camera as the default. If any program starts up the camera unexpectedly, they get a giant "NO EOS DEVICE CONNECTED" instead of me partially clothed with my no-coffee-yet face on.