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# NSLayoutManager.ControlCharacterAction

Constants that describe actions for control characters.

```
struct ControlCharacterAction
```

## Overview

These constants [`layoutManager(_:shouldUse:forControlCharacterAt:)`](/documentation/UIKit/NSLayoutManagerDelegate/layoutManager(_:shouldUse:forControlCharacterAt:)) delegate method uses.

## Topics

### Actions

[`NSControlCharacterActionContainerBreak`](/documentation/UIKit/NSLayoutManager/ControlCharacterAction/containerBreak)

An action that triggers a break in layout for the current container.

[`NSControlCharacterActionHorizontalTab`](/documentation/UIKit/NSLayoutManager/ControlCharacterAction/horizontalTab)

An action that inserts a horizontal tab.

[`NSControlCharacterActionLineBreak`](/documentation/UIKit/NSLayoutManager/ControlCharacterAction/lineBreak)

An action that causes a line break.

[`NSControlCharacterActionParagraphBreak`](/documentation/UIKit/NSLayoutManager/ControlCharacterAction/paragraphBreak)

An action that causes a paragraph break.

[`NSControlCharacterActionWhitespace`](/documentation/UIKit/NSLayoutManager/ControlCharacterAction/whitespace)

An action that adds whitespace.

[`NSControlCharacterActionZeroAdvancement`](/documentation/UIKit/NSLayoutManager/ControlCharacterAction/zeroAdvancement)

An action that removes the glyph from layout.

### Initializers

[`init(rawValue:)`](/documentation/UIKit/NSLayoutManager/ControlCharacterAction/init(rawValue:))

Creates a new control character action with the specified raw value.

## Relationships

### Conforms To

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

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

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

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

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

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

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

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

---

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