---
title: MTLForwardProgressUsage.weak
framework: Metal
role: symbol
role_heading: Case
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: metal/mtlforwardprogressusage/weak
---

# MTLForwardProgressUsage.weak

## Declaration

```swift
case weak
```