---
title: OSRetain
framework: driverkit
role: symbol
role_heading: Global Variable
path: driverkit/osretain
---

# OSRetain

## Declaration

```occ
constexpr static const auto OSRetain;
```

## See Also

### Constants

- [OSAdoptMemory](driverkit/osadoptmemory.md)
- [OSAllocateMemory](driverkit/osallocatememory.md)
- [OSAllocateMemoryZero](driverkit/osallocatememoryzero.md)
- [OSNoRetain](driverkit/osnoretain.md)