read_key abstract method
Reads a single key from the input, including a variety of control characters.
Keys are represented by the Key class. Keys may be printable (if so,
Key.isControl is false, and the Key.char property may be used to
identify the key pressed. Non-printable keys have Key.isControl set
to true, and if so the Key.char property is empty and instead the
Key.controlChar property will be set to a value from the
ControlCharacter enumeration that describes which key was pressed.
Owing to the limitations of terminal key handling, certain keys may
be represented by multiple control key sequences. An example showing
basic key handling can be found in the example/command_line.dart
file in the package source code.
Implementation
Key read_key();