# Method Protocols.TELNET.Readline()->tcsetattr()

Method tcsetattr

  `int tcsetattr(mapping(string:int) options, string|void when)`

Description

  Set terminal attributes.

  Currently only the following attributes are supported:

  `"ECHO"` | Local character echo on (`1`) or off (`0` (zero)).
  `"ICANON"` | Canonical input on (`1`) or off (`0` (zero)).

Note

  Using this function currently bypasses the Readline layer.

See also

  Stdio.File()->tcsetattr()