---
title: willShowNotification
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nspopover/willshownotification
---

# willShowNotification

Sent before the popover is shown.

## Declaration

```swift
class let willShowNotification: NSNotification.Name
```

## Discussion

Discussion To observe this notification using Swift concurrency, use NSPopover.WillShowMessage.

## See Also

### Notifications

- [didShowNotification](appkit/nspopover/didshownotification.md)
- [willCloseNotification](appkit/nspopover/willclosenotification.md)
- [didCloseNotification](appkit/nspopover/didclosenotification.md)