---
title: opaque
framework: system
role: symbol
role_heading: Type Property
path: system/fileflags/opaque
---

# opaque

Directory is opaque when viewed through a union mount.

## Declaration

```swift
static var opaque: FileFlags { get }
```

## Discussion

Discussion The corresponding C constant is UF_OPAQUE. note: This flag may be changed by the file owner or superuser.