async_sub.py 文件源码

def ReadFile(handle, desired_bytes, ol = None):
            c_read = DWORD()
            buffer = ctypes.create_string_buffer(desired_bytes+1)
            success = ctypes.windll.kernel32.ReadFile(handle, buffer, desired_bytes, ctypes.byref(c_read), ol)
            buffer[c_read.value] = null_byte
            return ctypes.windll.kernel32.GetLastError(), decode(buffer.value)