---
title: NSPopover.WillShowMessage
framework: appkit
role: symbol
role_heading: Structure
path: appkit/nspopover/willshowmessage
---

# NSPopover.WillShowMessage

## Declaration

```swift
struct WillShowMessage
```

## Topics

### Initializers

- [init(popover:)](appkit/nspopover/willshowmessage/init(popover:).md)

### Instance Properties

- [popover](appkit/nspopover/willshowmessage/popover.md)

## Relationships

### Conforms To

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