---
title: allInstances
framework: vision
role: symbol
role_heading: Instance Property
path: vision/vninstancemaskobservation/allinstances
---

# allInstances

The collection that contains all instances, excluding the background.

## Declaration

```swift
var allInstances: IndexSet { get }
```

## See Also

### Accessing Instances

- [instanceMask](vision/vninstancemaskobservation/instancemask.md)