> ## Documentation Index
> Fetch the complete documentation index at: https://docs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# GetShapeXmaNumChannels

> GetShapeXmaNumChannels

# GetShapeXmaNumChannels

获取通道数。

## 语法

```cpp theme={null}
UINT32 GetShapeXmaNumChannels(  
         const SHAPE_XMA_CONTEXT* context  
)  
```

### 参数

*context*   \_In\_\
Type: [SHAPE\_XMA\_CONTEXT](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/structs/shape_xma_context.md)\*

指向 [SHAPE\_XMA\_CONTEXT](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/structs/shape_xma_context.md) 对象的指针。

### 返回值

Type: UINT32

通道数;1(单声道)或 2(立体声)。

## 备注

此函数返回上下文中的实际通道数。(在 [SHAPE\_XMA\_CONTEXT](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/structs/shape_xma_context.md) 对象中,`numChannels` 成员包含值 0 \[单声道] 或 1 \[立体声]。)

若要设置通道数,请使用 [SetShapeXmaNumChannels](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/functions/setshapexmanumchannels.md)。

有关详细信息,请参阅 [Overview of SHAPE](https://docs.xbox.com/zh-CN/build/console-features/audio/overviews/shape-overview.md) 的 [XMA](https://docs.xbox.com/zh-CN/build/console-features/audio/overviews/shape-overview.md#ID4EYD) 部分。

## 要求

**头文件:** shapexmacontext.h

**支持的平台:** XBOX One 系列主机和 XBOX Series 主机

## 另请参阅

[ShapeXmaContext](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/shapexmacontext_members.md)


## Related topics

- [SetShapeXmaNumChannels](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/functions/setshapexmanumchannels.md)
- [ShapeXmaContext](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/shapexmacontext_members.md)
- [GetShapeDmaNumChannels](https://docs.xbox.com/zh-CN/reference/audio/shapedmacontext/functions/getshapedmanumchannels.md)
- [GetShapeXmaNumLoops](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/functions/getshapexmanumloops.md)
- [GetShapeXmaNumSubframesToDecode](https://docs.xbox.com/zh-CN/reference/audio/shapexmacontext/functions/getshapexmanumsubframestodecode.md)