# RHIDevice::CreateSwapChain

```cpp
virtual RHISwapChain* CreateSwapChain(const SwapChainDesc& desc) = 0;
```

创建交换链，用于管理窗口渲染和帧缓冲区切换。

**参数：**
- `desc` - 交换链描述符，包含尺寸、缓冲数量、格式等

**返回：** 新创建的交换链指针，失败返回 `nullptr`

**复杂度：** O(1)

**示例：**

```cpp
SwapChainDesc swapChainDesc;
swapChainDesc.width = 1280;
swapChainDesc.height = 720;
swapChainDesc.bufferCount = 2;
swapChainDesc.format = (uint32_t)Format::R8G8B8A8_UNorm;
swapChainDesc.refreshRate = 60;
swapChainDesc.sampleCount = 1;
swapChainDesc.sampleQuality = 0;

RHISwapChain* swapChain = device->CreateSwapChain(swapChainDesc);
```

## 相关文档

- [RHIDevice 总览](device.md) - 返回类总览
- [RHISwapChain](../swap-chain/swap-chain.md) - 交换链类