---
title: "init(contextSize:drawingBlock:)"
framework: quicklookthumbnailing
role: symbol
role_heading: Initializer
path: "quicklookthumbnailing/qlthumbnailreply/init(contextsize:drawingblock:)"
---

# init(contextSize:drawingBlock:)

## Declaration

```swift
convenience init(contextSize: CGSize, drawingBlock: @escaping (CGContext) -> Bool)
```