---
title: byteCount
framework: kernel
role: symbol
role_heading: Instance Property
path: kernel/iostorageextent/1575004-bytecount
---

# byteCount

Size of the operation.

## Declaration

```occ
UInt64 byteCount;
```

## See Also

### Fields

- [byteStart](kernel/iostorageextent/1575000-bytestart.md)