---
title: Ruler Marker Type Values
framework: appkit
role: collectionGroup
role_heading: API Collection
path: appkit/ruler-marker-type-values
---

# Ruler Marker Type Values

Values that indicate the marker type of an element.

## Overview

Overview Use these values with an accessibility element’s markerType property.

## Topics

### Constants

- [leftTabStop](appkit/nsaccessibility-swift.struct/rulermarkertypevalue/lefttabstop.md)
- [rightTabStop](appkit/nsaccessibility-swift.struct/rulermarkertypevalue/righttabstop.md)
- [centerTabStop](appkit/nsaccessibility-swift.struct/rulermarkertypevalue/centertabstop.md)
- [decimalTabStop](appkit/nsaccessibility-swift.struct/rulermarkertypevalue/decimaltabstop.md)
- [headIndent](appkit/nsaccessibility-swift.struct/rulermarkertypevalue/headindent.md)
- [tailIndent](appkit/nsaccessibility-swift.struct/rulermarkertypevalue/tailindent.md)
- [firstLineIndent](appkit/nsaccessibility-swift.struct/rulermarkertypevalue/firstlineindent.md)
- [unknown](appkit/nsaccessibility-swift.struct/rulermarkertypevalue/unknown.md)

## See Also

### Constants

- [Standard Attributes](appkit/standard-attributes.md)
- [Text-Specific Attributes](appkit/text-specific-attributes.md)
- [Text-Specific Parameterized Attributes](appkit/text-specific-parameterized-attributes.md)
- [Text Attributed-String Attributes and Constants](appkit/text-attributed-string-attributes-and-constants.md)
- [Window-Specific Attributes](appkit/window-specific-attributes.md)
- [App-Specific Attributes](appkit/app-specific-attributes.md)
- [Grid View Attributes](appkit/grid-view-attributes.md)
- [Table View and Outline View Attributes](appkit/table-view-and-outline-view-attributes.md)
- [Outline View Attributes](appkit/outline-view-attributes.md)
- [Cell-Based Table Attributes](appkit/cell-based-table-attributes.md)
- [Cell-Based Table Parameterized Attributes](appkit/cell-based-table-parameterized-attributes.md)
- [Cell Attributes](appkit/cell-attributes.md)
- [Layout Area Attributes](appkit/layout-area-attributes.md)
- [Layout Area Parameterized Attributes](appkit/layout-area-parameterized-attributes.md)
- [Layout Item Attributes](appkit/layout-item-attributes.md)