The amount (or delta) of the event. When used for high-precision scroll events, this indicates the scroll amount (vertical or horizontal). This is only supported on some platforms; the reported sensitivity varies depending on the platform. May be 0 if not supported.
The amount (or delta) of the event. When used for high-precision scroll events, this indicates the scroll amount (vertical or horizontal). This is only supported on some platforms; the reported sensitivity varies depending on the platform. May be 0 if not supported.