Returns the current mouse tracking speed (acceleration level). Values range from -1.0 (system default, acceleration disabled) to 3.0 (maximum acceleration). Returns -1.0 if the value cannot be read.
-1.0
3.0
The current tracking speed as a number.
Returns the current mouse tracking speed (acceleration level). Values range from
-1.0(system default, acceleration disabled) to3.0(maximum acceleration). Returns-1.0if the value cannot be read.