Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
Retrieves the thread identifier of the specified thread.
Syntax
DWORD GetThreadId(
[in] HANDLE Thread
);
Parameters
[in] Thread
A handle to the thread. The handle must have the THREAD_QUERY_INFORMATION or THREAD_QUERY_LIMITED_INFORMATION access right. For more information about access rights, see Thread Security and Access Rights.
Windows Server 2003: The handle must have the THREAD_QUERY_INFORMATION access right.
Return value
If the function fails, the return value is zero. To get extended error information, call GetLastError.
Remarks
Until a thread terminates, its thread identifier uniquely identifies it on the system.
To compile an application that uses this function, define _WIN32_WINNT as 0x0502 or later. For more information, see Using the Windows Headers.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [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 Vista, Windows 7, Windows Server 2008 Windows Server 2008 R2) |
| Library | Kernel32.lib |
| DLL | Kernel32.dll |