KEY: keyboard input ASCII value, scan code, shift status (H)

• • result = KEY( keyword=variable [, keyword=variable2, ...] ) ! catch keyboard input and get shift keys status
• variable(s) are set to 0 if no keyboard input is available

  keyword	type	the keyword sequence is insignificant
  Ascii	NUM	is the default result
  Scan	NUM	returns the scan code (not for F-keys)
  SHift	NUM	returns 1 if shift is down
  Control	NUM	returns 2 if control is down
  ALt	NUM	returns 4 if Alt is down
  CApital	NUM	returns 8 if caps is toggled to "on"
  Numlock	NUM	returns 16 if numlock is toggled to "on"
  SCRoll	NUM	returns 32 if scrol is toggled to "on"
  Alt Gr	-	returns 6 ( = 2 + 4 for Control + Alt)

• the first keyword

  without

  a numeric assignment is returned in result, e.g.:
  • control_status = KEY(Ascii=asc, SHift=shft, Control)
• if all keyords have an assignment and Ascii is present, result is the ascii value of the key pressed
• the KEY function

  does not wait

  for input. If you want to wait for a keyboard event use DLG, WRITE-messagebox, or ALARM
• compare also the LOCK() function on how to lock the keyboard

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