Int 2F Fn 168F  - Windows95 - Close-awareness - Query Close                [W]

   AX = 168Fh
   DH = 01h
   DL = 00h (reserved)

Return: AX = status
       0000h Close command selected but not yet acknowledged
       0001h Close command issued and acknowledged
       168Fh Close command not selected -- application should continue
Desc:  determine whether the user has requested that the application be closed
     by selecting the system menu's Close option

See Also: AX=168Fh/DH=00h,AX=168Fh/DH=02h