---
title: option
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nsevent/modifierflags-swift.struct/option
---

# option

The Option or Alt key has been pressed.

## Declaration

```swift
static var option: NSEvent.ModifierFlags { get }
```

## See Also

### Event Modifier Flags

- [capsLock](appkit/nsevent/modifierflags-swift.struct/capslock.md)
- [shift](appkit/nsevent/modifierflags-swift.struct/shift.md)
- [control](appkit/nsevent/modifierflags-swift.struct/control.md)
- [command](appkit/nsevent/modifierflags-swift.struct/command.md)
- [numericPad](appkit/nsevent/modifierflags-swift.struct/numericpad.md)
- [help](appkit/nsevent/modifierflags-swift.struct/help.md)
- [function](appkit/nsevent/modifierflags-swift.struct/function.md)
- [deviceIndependentFlagsMask](appkit/nsevent/modifierflags-swift.struct/deviceindependentflagsmask.md)