I have been reading a previous post by someone about calculations in moufiltr’s to determine the mouse’s position. I would very much like to do the same thing and determine the mouse’s coordinate from within a driver but that shouldn’t be much of a problem as long as I know the initial coordinates which I assume are the centre of the primary monitor.

Anyway my question is something Doron mentioned, that the ServiceCallback might not return every relative movement. What events might I be missing and how do I set a callback for every mouse movement?

As always thankyou,

Send me an email at I might be able to help.