when mouseMoved and mouseDragged fired?

[toton]

Hi,
When mouseMoved & mouseDragged from MouseMotionListener gets fired?
i.e what is their threshold for minimum mouse movement? is it fixed for
Java or gets fired from underlying platform according to system
settings? Anyway to control it from Java API? (change the settings) and
do they map to screen resolution, or use seperate mouse resoulion? i.e
If my mouse resolution is higher than that of screen, will it trigger
mouseMove, even when mouse pointer stays same int screen pixel
coordinate?

thanks
abir