How to handle scroll down in the web page

[basanth27]

This function activates the scroll wheel on your mouse. What happens is, irrespective of the window or webpage you are on, this function will activate the scroll button on your mouse and per the number lets say 2, it will scroll 2 steps down and -2 will scroll 2 steps up.
It utilizes the user32.dll on your windows OS to talk directly to the mouse device and performs the action. It is not dependent on the application.