INKEY() (STRING)

 Function
  Get the next key input.

 Syntax
  INKEY()   No arguments are required

 Return Type & Value
  STRING
  Returns a single character for displayable characters or a string with
  the name of the function or cursor control key for cursor movement and
  function keys.

 Remarks
  This function will return a single character long string for most key
  presses.  Additionally, it will return key names for function keys and
  cursor movement keys if it finds an ANSI sequence or DOORWAY mode
  sequence.  It will return keystrokes from both the remote caller as well
  as the local BBS node.  However, realize that many function keys are
  reserved by PCBoard for BBS related uses and may not be available for
  your applications that require SysOp input.

 Examples
  STRING key
  WHILE (key <> CHR(27)) DO
    LET key = INKEY()
    IF (LEFT(key,5) = "SHIFT") THEN
      PRINTLN "It was a shifted key"
    ELSEIF (LEFT(key,4) = "CTRL") THEN
      PRINTLN "It was a control key"
    ELSEIF (LEFT(key,3) = "ALT") THEN
      PRINTLN "It was an alternate key"
    ENDIF
    PRINTLN "The key was ",key
  ENDWHILE