---
title: CWLinkQualityDidChange
framework: foundation
role: symbol
role_heading: Type Property
path: foundation/nsnotification/name-swift.struct/cwlinkqualitydidchange
---

# CWLinkQualityDidChange

## Declaration

```swift
static let CWLinkQualityDidChange: NSNotification.Name
```

## Discussion

Discussion Posted when the link quality for any WLAN interface changes. The object for this notification is the corresponding BSD interface name. The userInfo dictionary for this notification contains the current RSSI and current transmit rate for the given CoreWLAN interface.

## See Also

### Core WLAN

- [CWBSSIDDidChange](foundation/nsnotification/name-swift.struct/cwbssiddidchange.md)
- [CWCountryCodeDidChange](foundation/nsnotification/name-swift.struct/cwcountrycodedidchange.md)
- [CWLinkDidChange](foundation/nsnotification/name-swift.struct/cwlinkdidchange.md)
- [CWModeDidChange](foundation/nsnotification/name-swift.struct/cwmodedidchange.md)
- [CWPowerDidChange](foundation/nsnotification/name-swift.struct/cwpowerdidchange.md)
- [CWSSIDDidChange](foundation/nsnotification/name-swift.struct/cwssiddidchange.md)
- [CWScanCacheDidUpdate](foundation/nsnotification/name-swift.struct/cwscancachedidupdate.md)