The command BREAK_OFF de-activates the functioning of both <CTRL><SPACE> (the Break Key) and <CTRL><F5> (the Pause Screen key) during the running of interpreted SuperBASIC programs so that they cannot be stopped by the user unless they stop either due to an error or a STOP command.
The command BREAK_ON reactivates both keys.
The function BREAK returns the current status:
IF BREAK=1 means the Break Key is active, while
IF BREAK=0 means that it is inactive.
BREAK_OFF may not work on Minerva ROMs unless you have v1.10 or later of the Toolkit, which uses the new Minerva System Xtensions to overcome any problem.
BREAK_OFF does not currently work with SMS.