# 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()