GetThreadContext function
Retrieves the context of the specified thread.
A 64-bit application can retrieve the context of a WOW64 thread using the Wow64GetThreadContextfunction.
Syntax
BOOL WINAPI GetThreadContext( _In_ HANDLE hThread, _Inout_ LPCONTEXT lpContext );
Parameters
- hThread [in]
A handle to the thread whose context is to be retrieved. The handle must haveTHREAD_GET_CONTEXT access to the thread. For more information, see Thread Security and Access Rights.
WOW64: The handle must also have THREAD_QUERY_INFORMATION access.
- lpContext [in, out]
A pointer to a CONTEXT structure that receives the appropriate context of the specified thread. The value of the ContextFlags member of this structure specifies which portions of a thread's context are retrieved. The CONTEXT structure is highly processor specific. Refer to the WinNT.h header file for processor-specific definitions of this structures and any alignment requirements.
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.
https://msdn.microsoft.com/ko-kr/library/windows/desktop/ms679362(v=vs.85).aspx
WinAPI의 GetThreadContext는 Native API의 ZwGetContextThread로 연결된다.