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# NSSplitViewItemAccessoryViewController

```
class NSSplitViewItemAccessoryViewController
```

## Topics

### Configuring the scroll edge effect

[`preferredScrollEdgeEffectStyle`](/documentation/AppKit/NSSplitViewItemAccessoryViewController/preferredScrollEdgeEffectStyle)

The split view item accessory’s preferred effect for content scrolling behind it.

[`NSScrollEdgeEffectStyle`](/documentation/AppKit/NSScrollEdgeEffectStyle)

Styles for a scroll view’s edge effect.

## Relationships

### Inherits From

[`NSViewController`](/documentation/AppKit/NSViewController)

### Conforms To

[`CVarArg`](/documentation/Swift/CVarArg)

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`NSAnimatablePropertyContainer`](/documentation/AppKit/NSAnimatablePropertyContainer)

[`NSSeguePerforming`](/documentation/AppKit/NSSeguePerforming)

[`NSUserInterfaceItemIdentification`](/documentation/AppKit/NSUserInterfaceItemIdentification)

[`Hashable`](/documentation/Swift/Hashable)

[`NSEditor`](/documentation/AppKit/NSEditor)

[`Sendable`](/documentation/Swift/Sendable)

[`NSCoding`](/documentation/Foundation/NSCoding)

[`NSExtensionRequestHandling`](/documentation/Foundation/NSExtensionRequestHandling)

[`Equatable`](/documentation/Swift/Equatable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`NSTouchBarProvider`](/documentation/AppKit/NSTouchBarProvider)

[`NSStandardKeyBindingResponding`](/documentation/AppKit/NSStandardKeyBindingResponding)

[`NSUserActivityRestoring`](/documentation/AppKit/NSUserActivityRestoring)

---

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