Plz help w/ mouse pointer

[Backnor]

Is there any way to have your mouse hover of an area (area like 400X400) and throw a flag if the mouse pointer changes?

This may not be possible but it sure would make my life a little easer.

If this can be done plz point me in the right direction to learn how to script this, not asking for code but the source to learn.

like

Mousemove (400,460,800,860) If
 mousestate =1 then
$Cond1
If @error then
$cond2

lol I may be way off here but I do not think autoit supports this without reading mem

Thanks all