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MouseSpeed

HKCU\Control Panel\Mouse

Data type

Range

Default value

REG_SZ

0 | 1 | 2

1

Description

Determines how fast the cursor moves in response to movements of the mouse.

MouseSpeed, MouseThreshold1, and MouseThreshold2 determine when and to what extent cursor speed accelerates when the mouse moves rapidly.

When the mouse moves slowly, the system moves the cursor at a constant rate that is directly proportional to the rate at which the mouse moves. But if the mouse moves faster than the value of MouseThreshold1 or MouseThreshold2, the system can respond by accelerating the movement of the cursor, so that the cursor moves two or four times as fast as the mouse.

Value

Meaning

0

No acceleration

1

Double at MouseThreshold1 When the mouse speed reaches or exceeds the value of MouseThreshold1, the cursor moves at twice the normal speed; that is, when the mouse moves one pixel, the cursor moves two pixels.

2

Double at MouseThreshold1; quadruple at MouseThreshold2. When the mouse speed reaches or exceeds the value of MouseThreshold1, the cursor moves at twice the normal speed; that is, when the mouse moves one pixel, the cursor moves two pixels. When the mouse speed reaches or exceeds the value of MouseThreshold2, the cursor moves at four times the normal speed; that is, when the mouse moves one pixel, the cursor moves four pixels.

Change method

To change the value of this entry, double-click Mouse in Control Panel. Click the Motion tab, and then use the Acceleration option buttons. The Acceleration setting determines the following registry values:

None 

Low 

Medium 

High 

MouseSpeed

0

1

2

2

MouseThreshold1

0

7

4

4

MouseThreshold2

0

0

12

6

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