---
title: NSSpellChecker.DidChangeAutomaticPeriodSubstitutionMessage
framework: appkit
role: symbol
role_heading: Structure
path: appkit/nsspellchecker/didchangeautomaticperiodsubstitutionmessage
---

# NSSpellChecker.DidChangeAutomaticPeriodSubstitutionMessage

## Declaration

```swift
struct DidChangeAutomaticPeriodSubstitutionMessage
```

## Topics

### Initializers

- [init()](appkit/nsspellchecker/didchangeautomaticperiodsubstitutionmessage/init().md)

## Relationships

### Conforms To

- [Copyable](swift/copyable.md)
- [Escapable](swift/escapable.md)
- [NotificationCenter.MainActorMessage](foundation/notificationcenter/mainactormessage.md)
- [SendableMetatype](swift/sendablemetatype.md)