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  "identifier" : "/documentation/AppKit/NSSegmentedControl/SwitchTracking",
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# NSSegmentedControl.SwitchTracking

Constants that specify the type of tracking behavior a segmented control exhibits.

```
enum SwitchTracking
```

## Topics

### Constants

[`NSSegmentedControl.SwitchTracking.selectOne`](/documentation/AppKit/NSSegmentedControl/SwitchTracking/selectOne)

Only one segment in the control can be selected at a time.

[`NSSegmentedControl.SwitchTracking.selectAny`](/documentation/AppKit/NSSegmentedControl/SwitchTracking/selectAny)

One or more segment cells in the control can be selected at a time.

[`NSSegmentedControl.SwitchTracking.momentary`](/documentation/AppKit/NSSegmentedControl/SwitchTracking/momentary)

A tracking mode that selects a segment when a person clicks within the bounds of the segment.

[`NSSegmentedControl.SwitchTracking.momentaryAccelerator`](/documentation/AppKit/NSSegmentedControl/SwitchTracking/momentaryAccelerator)

A tracking mode that sends repeating actions as pressure changes on Force Touch systems, stopping when someone releases the segment.


---

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