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Retrieves the thread identifier of the calling thread.
DWORD GetCurrentThreadId();
The return value is the thread identifier of the calling thread.
Until the thread terminates, the thread identifier uniquely identifies the thread throughout the system.
For an example, see Using Thread Local Storage.
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2003 [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | processthreadsapi.h (include Windows.h on Windows Server 2003, Windows Vista, Windows 7, Windows Server 2008 Windows Server 2008 R2) |
| Library | Kernel32.lib |
| DLL | Kernel32.dll |