Int 21/AH=33h

DOS 2+ - EXTENDED BREAK CHECKING

AH = 33h
AL = subfunction
00h get current extended break state
Return:
DL = current state, 00h = off, 01h = on
01h set state of extended ^C/^Break checking
DL = new state
00h off, check only on character I/O functions
01h on, check on all DOS functions
Return:
(Novell DOS 7) DL = old state of extended Break checks

Note: Under DOS 3.1+ and DR DOS, this function does not use any of the DOS-internal stacks and may thus be called at any time

See Also: AX=3302h

Category: DOS Kernel - Int 21h - D

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