---
title: QCPlugInAttributeCategoriesKey
framework: quartz
role: symbol
role_heading: Global Variable
path: quartz/qcpluginattributecategorieskey
---

# QCPlugInAttributeCategoriesKey

## Declaration

```swift
let QCPlugInAttributeCategoriesKey: String
```

## See Also

### Deprecated constants

- [QCCompositionAttributeIsTimeDependentKey](quartz/qccompositionattributeistimedependentkey.md)
- [QCPlugInAttributeCopyrightKey](quartz/qcpluginattributecopyrightkey.md)
- [QCPlugInAttributeExamplesKey](quartz/qcpluginattributeexampleskey.md)