---
title: "init(regionID:size:)"
framework: virtualization
role: symbol
role_heading: Initializer
path: "virtualization/vzvirtiosharedmemoryregionconfiguration/init(regionid:size:)"
---

# init(regionID:size:)

Initializes a shared memory region with a shared memory region ID and size.

## Declaration

```swift
init(regionID: UInt8, size: UInt64)
```

## Parameters

- `regionID`: Shared memory region ID.
- `size`: Shared memory region size.

## Return Value

Return Value An initialized VZVirtioSharedMemoryRegionConfiguration.