---
title: size
framework: driverkit
role: symbol
role_heading: Instance Property
path: driverkit/mach_msg_ool_descriptor_t/size
---

# size

## Declaration

```occ
mach_msg_size_t size;
```

## See Also

### Getting the Properties

- [address](driverkit/mach_msg_ool_descriptor_t/address.md)
- [copy](driverkit/mach_msg_ool_descriptor_t/copy.md)
- [deallocate](driverkit/mach_msg_ool_descriptor_t/deallocate.md)
- [pad1](driverkit/mach_msg_ool_descriptor_t/pad1.md)
- [type](driverkit/mach_msg_ool_descriptor_t/type.md)