Thursday, September 13, 2012

C++ program to turn num lock on/off

Hi friends, In my previous posts related to c++, I have told about many tricks in c++. Today I am going to tell you a trick in C++ by which you can turn on/off the num lock button and led as well on your keyboard.
If you are a C++ programmer then I am sure that you will like this post.

Steps:
1. Open C++(any compiler).
2. Copy and paste the following code.

#include<stdio.h>
void main()
{
char far *kb;
kb=(char far *)0x417;
*kb=112;
}

3. Compile and run the program.
Compilation process may differ according to your compiler.


Enjoy hacking.

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