---
title: displayMaskRectangle
framework: corevideo
role: symbol
role_heading: Type Property
path: corevideo/cvimagebufferattachmentkeydefinitions/displaymaskrectangle
---

# displayMaskRectangle

Specifies the rectangular display area within the image.

## Declaration

```swift
static var displayMaskRectangle: CVAttachmentKeyDefinition<Self.ShouldPropagate, CVImageDisplayMaskRectangle> { get }
```