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36 lines
496 B
Markdown
36 lines
496 B
Markdown
# D3D12SwapChain::GetBackBuffer
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## 函数签名
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```cpp
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D3D12Texture* GetBackBuffer(uint32_t index) const
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```
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## 中文描述
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获取指定索引的后台缓冲区。
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## 参数
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| 参数 | 类型 | 描述 |
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|------|------|------|
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| `index` | `uint32_t` | 缓冲区索引 |
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## 返回值
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`D3D12Texture*` - 后台缓冲区纹理指针
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## 复杂度
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O(1)
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## 示例
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```cpp
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D3D12Texture* buffer = swapChain->GetBackBuffer(0);
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```
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## 相关文档
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- [D3D12SwapChain](swap-chain.md) - 类总览
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