---
title: GetDataQueueEntryHeaderSize
framework: Kernel
role: symbol
role_heading: Type Method
platforms: [driverkit 22.0+, macOS 13.0+]
path: kernel/iodataqueuedispatchsource/3969248-getdataqueueentryheadersize
---

# GetDataQueueEntryHeaderSize

## Declaration

```occ
static size_t GetDataQueueEntryHeaderSize(void);
```