> 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/advapi32/openthreadtoken.md).

# OpenThreadToken

```csharp
[DllImport("ADVAPI32.dll", ExactSpelling = true, SetLastError = true)]
[DefaultDllImportSearchPaths(DllImportSearchPath.System32)]
public static extern unsafe BOOL OpenThreadToken(
    HANDLE ThreadHandle,
    TOKEN_ACCESS_MASK DesiredAccess,
    BOOL OpenAsSelf,
    HANDLE* TokenHandle);
```

[TOKEN\_ACCESS\_MASK](/security/token_access_mask.md)