Slider.AllowLiveScrolling

From Xojo Documentation

Property (As Boolean )
aSlider.AllowLiveScrolling = newBooleanValue
or
BooleanValue = aSlider.AllowLiveScrolling

New in 2019r2

Supported on Desktop (Windows, macOS).

If True, a ValueChanged event occurs as the user drags the thumbnail in the slider.

Notes

Otherwise, a single ValueChanged event occurs when the user stops dragging the thumbnail.

On Linux (GTK3), the Slider always does live scrolling regardless of this setting.