---
title: OSType
framework: kernel
role: symbol
role_heading: Type Alias
path: kernel/ostype
---

# OSType

## Declaration

```occ
typedef FourCharCode OSType;
```

## See Also

### Typedefs

- [OSAsyncReference](kernel/osasyncreference.md)
- [OSAsyncReference64](kernel/osasyncreference64.md)
- [OSContainer](kernel/oscontainer.md)
- [OSKextRequestTag](kernel/oskextrequesttag.md)
- [OSIterator](kernel/ositerator-8m.md)