Int 21 Fn 3302  - DOS 3.x+ Internal - Get And Set Extended Control-break   [D]

   AX = 3302h
   DL = new state
        00h for OFF or 01h for ON

Return: DL = old state of extended BREAK checking

Notes: this function does not use any of the DOS-internal stacks and may thus
     be called at any time; one possible use is modifying Control-Break
     checking from within an interrupt handler or TSR
   not supported by DR-DOS through at least version 6.0

See Also: AH=33h