There are times when you just want to listen to some music on your notebook/laptop and want the display (LCD) of your notebook to remain off while the lid is still open. While there are a small amount of notebook manufacturer’s who provide this simple option of turning off the notebook’s LCD when not in use, many do not. I own a HP DV2799 Special Edition notebook, while it´s a great notebook in almost every way, it still lacks a basic button to switch off the display (LCD) whenever I want to. This is the case not only for this notebook, but also many new and expensive notebooks.

This led to me developing my very own small application which turns off my notebook LCD just with one click. I wrote this application in C# using Microsoft Visual Studio 2008. Its basically a simple console based application that makes use of a dll(User32.dll) file from Windows using System.Runtime.InteropServices namespace and then calls the required function.

I am sharing this small and useful application with all of you as a freeware license. You are free to distribute and use this application. I have tested this application on Windows Vista only. Please let us know if it works on earlier versions of Windows.

Icon used in this application is Copyrighted to 2008 Microsoft Corporation.

OS Compatibility: Windows XP, Windows Vista.