---
title: "RuntimeClassBase Structure"
ms.date: "11/04/2016"
ms.topic: "reference"
f1_keywords: ["implements/Microsoft::WRL::Details::RuntimeClassBase"]
ms.assetid: 6ada4f81-a857-488a-ad56-8d0b11ccbfcc
---
# RuntimeClassBase Structure

Supports the WRL infrastructure and is not intended to be used directly from your code.

## Syntax

```cpp
struct RuntimeClassBase;
```

## Remarks

Used to detect `RuntimeClass` in the [Make](make-function.md) function.

**RuntimeClassBase** is an empty structure.

## Inheritance Hierarchy

`RuntimeClassBase`

## Requirements

**Header:** implements.h

**Namespace:** Microsoft::WRL::Details

## See also

[Microsoft::WRL::Details Namespace](microsoft-wrl-details-namespace.md)