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

# D3D12XBOX_WRITE_VALUE_BOP_FLAGS (XBOX One 系列)

> 用於控制 ID3D12GraphicsCommandList::Write64BitValueBottomOfPipeX 等方法的旗標。

用於控制 GPU 時間戳記回寫至管線底端的旗標。

## 語法

```cpp theme={null}
typedef enum D3D12XBOX_WRITE_VALUE_BOP_FLAGS  : UINT  
{  
    D3D12XBOX_WRITE_VALUE_BOP_FLAG_NONE = 0x0,  
    D3D12XBOX_WRITE_VALUE_BOP_FLAG_GPU_TIMESTAMP = 0x1,  
    D3D12XBOX_WRITE_VALUE_BOP_FLAG_SYSTEM_TIMESTAMP = 0x2,  
} D3D12XBOX_WRITE_VALUE_BOP_FLAGS  
```

## 常數

| 常數 | 描述 |
| - | - |
| D3D12XBOX\_WRITE\_VALUE\_BOP\_FLAG\_NONE | 無旗標。 |
| D3D12XBOX\_WRITE\_VALUE\_BOP\_FLAG\_GPU\_TIMESTAMP | 要求 64 位元 GPU 時間戳記回寫。只有在傳遞給 [ID3D12GraphicsCommandList::Write64BitValueBottomOfPipeX](/zh-TW/reference/graphics/d3d12_x/interfaces/id3d12graphicscommandlist/methods/id3d12graphicscommandlist_write64bitvaluebottomofpipex) 和 [ID3D12XboxDmaCommandList::Write64BitValueBottomOfPipeX](/zh-TW/reference/graphics/d3d12_x/interfaces/id3d12xboxdmacommandlist/methods/id3d12xboxdmacommandlist_write64bitvaluebottomofpipex) 時，此值才有效。 |
| D3D12XBOX\_WRITE\_VALUE\_BOP\_FLAG\_SYSTEM\_TIMESTAMP | 要求 64 位元系統時間戳記回寫。只有在傳遞給 [ID3D12GraphicsCommandList::Write64BitValueBottomOfPipeX](/zh-TW/reference/graphics/d3d12_x/interfaces/id3d12graphicscommandlist/methods/id3d12graphicscommandlist_write64bitvaluebottomofpipex) 和 [ID3D12XboxDmaCommandList::Write64BitValueBottomOfPipeX](/zh-TW/reference/graphics/d3d12_x/interfaces/id3d12xboxdmacommandlist/methods/id3d12xboxdmacommandlist_write64bitvaluebottomofpipex) 時，此值才有效。 |

## 備註

下列函式使用此列舉：

* [Write32BitValueBottomOfPipeX](/zh-TW/reference/graphics/d3d12_x/interfaces/id3d12graphicscommandlist/methods/id3d12graphicscommandlist_write32bitvaluebottomofpipex)
* [ID3D12GraphicsCommandList::Write64BitValueBottomOfPipeX](/zh-TW/reference/graphics/d3d12_x/interfaces/id3d12graphicscommandlist/methods/id3d12graphicscommandlist_write64bitvaluebottomofpipex)
* [ID3D12XboxDmaCommandList::Write64BitValueBottomOfPipeX](/zh-TW/reference/graphics/d3d12_x/interfaces/id3d12xboxdmacommandlist/methods/id3d12xboxdmacommandlist_write64bitvaluebottomofpipex)

## 需求

**標頭：** d3d12\_x.h

**支援的平台：** XBOX One 系列

## 另請參閱

[d3d12\_x](/zh-TW/reference/graphics/d3d12_x/d3d12_x_members)


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