---
title: CAConstraintAttribute
framework: quartzcore
role: symbol
role_heading: Enumeration
path: quartzcore/caconstraintattribute
---

# CAConstraintAttribute

The constraint attribute type.

## Declaration

```swift
enum CAConstraintAttribute
```

## Topics

### Enumeration Cases

- [CAConstraintAttribute.height](quartzcore/caconstraintattribute/height.md)
- [CAConstraintAttribute.maxX](quartzcore/caconstraintattribute/maxx.md)
- [CAConstraintAttribute.maxY](quartzcore/caconstraintattribute/maxy.md)
- [CAConstraintAttribute.midX](quartzcore/caconstraintattribute/midx.md)
- [CAConstraintAttribute.midY](quartzcore/caconstraintattribute/midy.md)
- [CAConstraintAttribute.minX](quartzcore/caconstraintattribute/minx.md)
- [CAConstraintAttribute.minY](quartzcore/caconstraintattribute/miny.md)
- [CAConstraintAttribute.width](quartzcore/caconstraintattribute/width.md)

### Initializers

- [init(rawValue:)](quartzcore/caconstraintattribute/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)