driverlib.py 文件源码

def open_device(self, access=GENERIC_READ | GENERIC_WRITE, mode=0, creation=OPEN_EXISTING, flags=FILE_ATTRIBUTE_NORMAL):
        """See: CreateFile function
        http://msdn.microsoft.com/en-us/library/windows/desktop/aa363858(v=vs.85).aspx
        """
        CreateFile_Fn = windll.kernel32.CreateFileA
        CreateFile_Fn.argtypes = [
                wintypes.LPCSTR,                    # _In_          LPCTSTR lpFileName
                wintypes.DWORD,                     # _In_          DWORD dwDesiredAccess
                wintypes.DWORD,                     # _In_          DWORD dwShareMode
                LPSECURITY_ATTRIBUTES,              # _In_opt_      LPSECURITY_ATTRIBUTES lpSecurityAttributes
                wintypes.DWORD,                     # _In_          DWORD dwCreationDisposition
                wintypes.DWORD,                     # _In_          DWORD dwFlagsAndAttributes
                wintypes.HANDLE]                    # _In_opt_      HANDLE hTemplateFile
        CreateFile_Fn.restype = wintypes.HANDLE


        self.handle = wintypes.HANDLE(CreateFile_Fn('\\\\.\\' + self.name,
                             access,
                             mode,
                             NULL,
                             creation,
                             flags,
                             NULL))