term.py 文件源码

def getch_impl():
    # TODO: This windows impl keeps pipes/redirects from working. Need ReadFile for that,
    # with more complicated handling (personally, I'm just going to keep using unix/cygwin
    # for pipe-y debug stuff...)
    # TODO: Windows escape seqs via ReadConsoleInput, convert to VT100 seqs for more commonality.
    if is_windows:
        stdin_handle = ctypes.windll.kernel32.GetStdHandle(ctypes.c_ulong(-10))
        one_char_buf = ctypes.c_uint32()
        chars_read = ctypes.c_uint32()
        # NOTE: W version of this function == ERROR_NOACCESS after text color set in photopia!?
        result = ctypes.windll.kernel32.ReadConsoleA(stdin_handle,
                                                     ctypes.byref(one_char_buf),
                                                     1,
                                                     ctypes.byref(chars_read),
                                                     0)

        if result == 0 or chars_read.value != 1:
            last_err = ctypes.windll.kernel32.GetLastError()
            print('LAST ERR', last_err)
            err('failed to read console')

        return chr(one_char_buf.value)
    else: #Unix
        return sys.stdin.read(1)