Have you ever wanted to use your monitor as a makeshift light source when your webcam is active? In this tutorial, we’ll create a Python script that detects when your webcam is in use and automatically changes your desktop wallpaper to a bright white image. Once the webcam is inactive, it restores your default wallpaper. What We’ll Cover Monitoring Webcam Activity: Using Windows Registry to detect active webcam applications. Changing Wallpaper Programmatically: Leveraging Python’s ctypes to update the desktop wallpaper.