One Loupe is a very small program and has a magnifying window. You can resize its window with keyboard arrow keys. You can also press F11 key to toggle between full screen views. It shows you the detailed zoomed view of the selected area. It places its icon in system tray or you can make it active using hotkey.
OneLoupe is required to view everything on the screen enlarged. The small Magnifier is always ready when you need it to view all fine details, even the small print in the I-Net to decipher. OneLoupe is very practical and user-friendly. And it is virtually no burden on the system, an installation is not required. Once placed on the desktop, it is always ready for use. It is also suitable for people with visual impairments.