[Win32] Thread 종료 확인 - GetExitCodeThread

thread의 상태(종료 여부)를 반환한다.
Retrieves the termination status of the specified thread.

BOOL WINAPI GetExitCodeThread(
   __in HANDLE hThread,
   __out LPDWORD lpExitCode
);

Parameters

hThread
  A Ahndle to the thread.
  The handle must have the THREAD_QUERY_INFORMATION access right. For more information, see Thread Security and Access Rights.

lpExitCode
  A pointer to a variable to receive the thread termination status. If the specified thread has not terminated and the function succeeds, the termination status returned is STILL_ACTIVE.

Return Value

If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError.

 

Remarks

If the thread has terminated and the function succeeds, the termination status returned may be one of the following:

• The exit value specified in the ExitThread or TerminateThread function.
• The return value from the thread function.
• The exit value of the thread's process.

Warning  If a thread happens to return STILL_ACTIVE (259) as an error code, applications that test for this value could end up in an infinite loop.

Requirements

Client	Requires Windows Vista, Windows XP, Windows 2000 Professional, Windows NT Workstation, Windows Me, Windows 98, or Windows 95.
Server	Requires Windows Server 2008, Windows Server 2003, Windows 2000 Server, or Windows NT Server.
Header	Declared in Winbase.h; include Windows.h.
Library	Use Kernel32.lib.
DLL	Requires Kernel32.dll.