in_stream.py 文件源码

def common_mode_range_error_chans(self):
        """
        List[str]: Indicates a list of names of any virtual channels in
            the task for which the device(s) detected a common mode
            range violation. You must read
            **common_mode_range_error_chans_exist** before you read this
            property. Otherwise, you will receive an error.
        """
        cfunc = lib_importer.windll.DAQmxGetReadCommonModeRangeErrorChans
        if cfunc.argtypes is None:
            with cfunc.arglock:
                if cfunc.argtypes is None:
                    cfunc.argtypes = [
                        lib_importer.task_handle, ctypes.c_char_p,
                        ctypes.c_uint]

        temp_size = 2048
        val = ctypes.create_string_buffer(temp_size)

        error_code = cfunc(
            self._handle, val, temp_size)
        check_for_error(error_code)

        return unflatten_channel_string(val.value.decode('ascii'))