Int 21 Fn F8  - Doubledos - Set/reset Keyboard Control Flags               [T]

   AH = F8h
   AL = program for which to set flags
       00h this program
       01h other program
   DX = keyboard control flags (see #1776 at AH=E8h"DoubleDOS")

Return: DX = previous flags

Notes: disabling Ctrl-PrtSc will allow the program to intercept the keystroke;
     disabling any of the other keystrokes disables them completely
   this function is identical to AH=E8h

See Also: AH=E8h"DoubleDOS",AH=F1h"DoubleDOS",AH=F2h"DoubleDOS"

See Also: AH=F3h"DoubleDOS"