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# OpenGLCommandQueue::GetTimestampFrequency
```cpp
uint64_t GetTimestampFrequency() const
```
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**详细描述**: 获取时间戳频率。OpenGLCommandQueue 为存根实现,此方法始终返回 0表示不支持时间戳查询。
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**返回值:** `uint64_t` - 时间戳频率Hz当前固定返回 0
**示例:**
```cpp
uint64_t frequency = commandQueue->GetTimestampFrequency();
```
## 相关文档
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- [OpenGLCommandQueue](command-queue.md) - 返回至类概览