---
title: top
framework: Professional Video Applications
role: symbol
role_heading: Instance Property
platforms: [fxplug 3.1+]
path: professional_video_applications/fxrect/top
---

# top

The thickness, in pixels, of the top-edge processing region of the edgeWidths property.

## Declaration

```swift
var top: Int32
```

## See Also

### Properties

- [bottom](professional_video_applications/fxrect/bottom.md)
- [left](professional_video_applications/fxrect/left.md)
- [right](professional_video_applications/fxrect/right.md)