How to access mouse wheel? I'd like to use it for changing an opacity of some elements during the experiment.

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asked Mar 26, 2019 by anonymous

1 Answer

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answered Apr 2, 2021 by Ilia Korjoukov (13,720 points)
Best answer

You can use HID input element and select the mouse as an input device there. Then, the mouse wheel can be accessed as an axis value, which usually returns 0 for the wheel still state, 120 for scrolling up state and 56416 for the scrolling down state. The axis values change rapidly, so I would use a Control Loop script that continuously monitors the axis value

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