> 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/ntdll/ntsetinformationthread.md).

# NtSetInformationThread

```csharp
[DllImport("ntdll.dll", ExactSpelling = true)]
[DefaultDllImportSearchPaths(DllImportSearchPath.System32)]
public static extern unsafe NTSTATUS NtSetInformationThread(
    HANDLE ThreadHandle,
    THREAD_INFORMATION_CLASS ThreadInformationClass,
    void* ThreadInformation,
    uint ThreadInformationLength);
```

[THREAD\_INFORMATION\_CLASS](/foundation/thread_information_class.md)