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# NSScroller.UsableParts

These constants specify which parts of the scroller are visible.

```
enum UsableParts
```

## Topics

### Constants

[`NSNoScrollerParts`](/documentation/AppKit/NSScroller/UsableParts-swift.enum/noScrollerParts)

Specifies that the scroller has neither a knob nor scroll buttons, only the knob slot.

[`NSOnlyScrollerArrows`](/documentation/AppKit/NSScroller/UsableParts-swift.enum/onlyScrollerArrows)

Specifies that the scroller has only scroll buttons, no knob.

[`NSAllScrollerParts`](/documentation/AppKit/NSScroller/UsableParts-swift.enum/allScrollerParts)

Specifies that the scroller has at least a knob, possibly also scroll buttons.

## Relationships

### Conforms To

[`Equatable`](/documentation/Swift/Equatable)

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Sendable`](/documentation/Swift/Sendable)

[`Hashable`](/documentation/Swift/Hashable)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

---

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