Shift

An integer that indicates which of the SHIFT, CTRL, and ALT keys are down when the mouse wheel is rotated .

The following are possible values:

Value

Meaning

1

SHIFT key

2

CTRL key

4

ALT key

3

CTRL/SHIFT key

5

ALT/SHIFT key

6

CTRL/ALT key

7

CTRL/ALT/SHIFT key