---
title: Selection Markers
framework: appkit
role: collectionGroup
role_heading: API Collection
path: appkit/selection-markers
---

# Selection Markers

The following constants are used to describe special cases for a controller’s selection.

## Topics

### Constants

- [NSMultipleValuesMarker](appkit/nsmultiplevaluesmarker.md)
- [NSNoSelectionMarker](appkit/nsnoselectionmarker.md)
- [NSNotApplicableMarker](appkit/nsnotapplicablemarker.md)