---
title: applicationDefined
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nsevent/eventtypemask/applicationdefined
---

# applicationDefined

A mask for app-defined events.

## Declaration

```swift
static var applicationDefined: NSEvent.EventTypeMask { get }
```

## See Also

### Getting System Events

- [appKitDefined](appkit/nsevent/eventtypemask/appkitdefined.md)
- [cursorUpdate](appkit/nsevent/eventtypemask/cursorupdate.md)
- [flagsChanged](appkit/nsevent/eventtypemask/flagschanged.md)
- [periodic](appkit/nsevent/eventtypemask/periodic.md)
- [systemDefined](appkit/nsevent/eventtypemask/systemdefined.md)