Question

what is the usage of break mode

Answer 1

The application is in break mode. When debugging an application and a breakpoint is hit, the window 'The application is in break mode' occurs and debugging is impossible.

Answer 2

Break mode can help one to observe the code line to line to locate the error in order.

When some changes are done to these codes in any application, a way must be there to view these changes.

That way of the execution is called as Break Mode. In the break mode, the snapshot of running application is taken.