How to control gain between mouse movement and cursor movement ?

Hello, I want to control the gain between the mouse and the cursor in Java using XP.

For example, I want to be able to make the cursor move 10 pix when the mouse moves x cm (where x could be 2 cm, or 10 cm, or 20 cm, etc.). I want to use a simple parameter, a multiplier, to do this. I can find the value of the parameter empirically (I can move the mouse x cm and play around with the parameter value until I get the 10 pix of cursor movement).

I know how to:

- switch off the Windows mouse accelerator so that the relation between mouse movement and cursor movement is linear.

I don't know how to:

- access the mouse position data in the registry (?) and then feed that to the Java cursor via a variable/parameter/multiplier.

Thanks in advance for any replies

What is the difference between the mouse movements and the cursor movements?
People often use both terms for the same thing, what I call the cursor.
There is no way for a PC to move the mouse that a user has in his hand.

Java has no way to go into the Control panel and change OS settings.

Thanks for your reply.

"What is the difference between the mouse movements and the cursor movements?"

The mouse is what I move with my hand, the cursor is what I see moving on the computer screen. Java must read the mouse position and use this information to position the cursor. For example, if the mouse moves x cm, Java reads this and moves the cursor y pixels. Now, what I want to do is to control the relation between x and y.

Let's consider only the horizontal component of the movement and suppose that the relation that Java uses is:

cursorposition = k*mouseposition, where k is a constant.

I want to be able to change k, so that a mouse movement of x cm no longer produces a cursor movement of y pix. For example, I may want to produce a cursor movement of z pix, where z=l*y. Then I want to be able to implement this relation:

cursorposition = l*k*mouseposition.

I hope this clarifies things.

I don't think you can do that with pure Java, at least not as you described it. You could use a combination of a MouseListener and the Robot class to get the appearance of something similar though.