Active Window

Definition of Active Window in Network Encyclopedia.

What is an Active Window?

An ACTIVE WINDOW is the window that has the focus on a Microsoft Windows desktop. The active window is the window belonging to the application in which the user is currently working. If several windows are open on a user’s desktop, only one of these windows can be the active window.

A unique color on the active window’s title bar distinguishes it from other windows. If the user enters commands or text using the keyboard, these commands or text will be routed to the program displaying the active window.

To make a window the active window on the desktop, simply click on it using the mouse, or cycle through the windows on the desktop using Alt+Tab.

Active Window in Windows 10
Active Window

Screen Capture

You can capture a bitmap image of the active window to the clipboard by pressing Alt+PrintScreen. Then open Paint, paste the contents of the clipboard into the program, and save it as a *.bmp image.


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Recent Content

link to Simplex


Simplex is a form of communication in which signals are sent in only one direction. This is different from duplex transmission, in which signals can simultaneously be sent and received by a station, and from half-duplex transmission, in which signals can be sent or received but not both at the same time.
link to Full-duplex


Full-Duplex is a mode of communication in which data is simultaneously transmitted and received between stations. Full-duplex communication is twice as fast as half-duplex communication, and typically uses two separate pairs of wires (or two channels for wireless networking) for supporting simultaneous transmission and reception by a host.