---
title: source
framework: Professional Video Applications
role: symbol
role_heading: Instance Property
platforms: [fxplug 4.0+]
path: professional_video_applications/fximagetilerequest/source
---

# source

The type of image input requested.

## Declaration

```swift
var source: FxImageTileRequestSource { get }
```

## Discussion

Discussion Set the type to the filter’s input or one of its parameters.

## See Also

### Instance Properties

- [includeLeadingFilters](professional_video_applications/fximagetilerequest/includeleadingfilters.md)
- [parameterID](professional_video_applications/fximagetilerequest/parameterid.md)
- [requestTime](professional_video_applications/fximagetilerequest/requesttime.md)