Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
Int 21h Function 3Eh
 ◄Summary► ◄Example►                         ◄Up► ◄Contents► ◄Index► ◄Back►
────────────────────────────────────────────────────────────────────────────
 
     If you accidentally call this function with a zero handle, the
     standard input device is closed, and the keyboard appears to go
     dead. Be sure you always call the close function with a valid,
     nonzero handle.
                                    -♦-