NSSlider
NSSlider is a user interface control in AppKit, the macOS UI framework, that presents a horizontal or vertical track with a draggable knob to select a numeric value within a defined range.
Developed as a subclass of NSControl, NSSlider is backed by an NSSliderCell. It exposes minValue, maxValue,
Usage and integration follow standard AppKit patterns. You can create an NSSlider in code or place one
Notes: NSSlider is part of AppKit and is specific to macOS. In iOS, a similar control is