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INKEY$ Function Details
 
Syntax
  INKEY$
 
The INKEY$ function returns a one- or two-byte string containing
a character read from the standard input device. A null string is
returned if no character is waiting there. A one-character string
contains the actual character read from the keyboard, while a two-
character string indicates an extended code, the first character
of which is hexadecimal 00.
 
See ◄Keyboard Scan Codes Table► and the
◄ASCII Character Codes Table► for a complete list
of these codes.
 
The standard input device is usually the keyboard. INKEY$ does
not echo characters to the screen; instead, all characters are
passed through to the program except for the following:
 
  ■ CTRL+BREAK,    which halts program execution
  ■ CTRL+ALT+DEL,  which does a system reboot
  ■ CTRL+NUMLOCK,  which causes program execution to pause
  ■ PRTSC,         which prints the screen