> For the complete documentation index, see [llms.txt](https://www.pinvoke.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.pinvoke.dev/foundation/luid.md).

# LUID

```csharp
public struct LUID
{
    public uint LowPart;
    public int HighPart;
}
```