---
title: DISPATCH_SWIFT3_OVERLAY
framework: Dispatch
role: symbol
role_heading: Global Variable
path: dispatch/dispatch_swift3_overlay
---

# DISPATCH_SWIFT3_OVERLAY

## Declaration

```swift
var DISPATCH_SWIFT3_OVERLAY: Int32 { get }
```

## See Also

### Constants

- [DISPATCH_API_VERSION](dispatch/dispatch_api_version.md)
- [DISPATCH_APPLY_AUTO_AVAILABLE](dispatch/dispatch_apply_auto_available.md)
- [DISPATCH_ONCE_INLINE_FASTPATH](dispatch/dispatch_once_inline_fastpath.md)
- [MSEC_PER_SEC](dispatch/msec_per_sec.md)