compare.cpp

bool CompareLastWrite(const wchar_t* szPath1, const wchar_t* szPath2)
{
    HANDLE hPath1, hPath2;
    FILETIME ftPath1Create, ftPath1Access, ftPath1Write;
    FILETIME ftPath2Create, ftPath2Access, ftPath2Write;

    hPath1 = CreateFile2(szPath1, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr);
    if (hPath1 == INVALID_HANDLE_VALUE && GetLastError() == ERROR_FILE_NOT_FOUND) {
        return false;
    }

    hPath2 = CreateFile2(szPath2, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr);

    GetFileTime(hPath1, &ftPath1Create, &ftPath1Access, &ftPath1Write);
    GetFileTime(hPath2, &ftPath2Create, &ftPath2Access, &ftPath2Write);

    ULARGE_INTEGER ul1;
    ul1.LowPart = ftPath1Write.dwLowDateTime;
    ul1.HighPart = ftPath1Write.dwHighDateTime;

    ULARGE_INTEGER ul2;
    ul2.LowPart = ftPath2Write.dwLowDateTime;
    ul2.HighPart = ftPath2Write.dwHighDateTime;

    return ul1.QuadPart > ul2.QuadPart;
}