I once plugged in a Logitech keyboard on a fresh system and got a colorful branded popup covering several inches of screen real estate in the bottom right corner. It was urging me to download some Logitech software.

As far as I know, the source of the graphics was not the unifying receiver that I plugged in the USB port, and the notification was not using any OS API meant for hardware to be avle to prompt the user for additional download. It was a Logitech-built DLL shipped and loaded by the operating system as part of some default driver for the Logitech keyboard.