'QBasic NoBreak v1.0a
'Copyright (c)1995 by Daniel Trimble
'Public Domain - use at your own risk.

CLS
DO
   KEY 15, CHR$(4 + 128 + 32 + 64) + CHR$(70)
   ON KEY(15) GOSUB NoBreak: KEY(15) ON
   KEY 16, CHR$(4 + 128) + CHR$(70): ON KEY(16) GOSUB NoBreak: KEY(16) ON
   KEY 17, CHR$(4 + 128 + 32) + CHR$(70): ON KEY(17) GOSUB NoBreak
   KEY(17) ON: KEY 18, CHR$(4 + 128 + 64) + CHR$(70): ON KEY(18) GOSUB NoBreak
   KEY(18) ON: KEY 19, CHR$(4) + CHR$(70): ON KEY(21) GOSUB NoBreak
   KEY(21) ON: KEY 22, CHR$(4 + 64) + CHR$(70)
   ON KEY(22) GOSUB NoBreak: KEY(22) ON: KEY 23, CHR$(4 + 32) + CHR$(46)
   ON KEY(23) GOSUB NoBreak: KEY(23) ON: KEY 24, CHR$(4 + 64) + CHR$(46)
   ON KEY(24) GOSUB NoBreak: KEY(24) ON
   KEY 25, CHR$(4 + 32 + 64) + CHR$(46): ON KEY(25) GOSUB NoBreak: KEY(25) ON
  
   LOCATE 1, 1, 0: PRINT "QBasic NoBreak v1.0a"
   LOCATE 2, 1, 0: PRINT "Copyright (c)1995 by Daniel Trimble"
   LOCATE 4, 1, 0: PRINT "This program and all source is public domain.  I will not be held responsible"
   LOCATE 5, 1, 0: PRINT "for any damage this program may cause.  I am not at fault; use this at your"
   LOCATE 6, 1, 0: PRINT "own risk - period!"
   LOCATE 15, 1, 0: PRINT "Try pressing either CTRL-BREAK or CTRL-C.  Nothing will happen!"
   LOCATE 16, 1, 0: PRINT "To end the program, hit ENTER."
   IF INKEY$ = CHR$(13) THEN END
LOOP

NoBreak: RETURN
                                                           
                                                           
'ctrl =4          extended keys=128
'num lock=32      c=46
'cap lock=64