Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

Turn this toggle on when you want the QBX environment to:
  ■ Run your program at full speed
  ■ Record the last 20 lines of program code executed
    before a program stops
 
You can then step backward and forward through the 20 lines
of code recorded by History On by pressing Shift+F8 or
Shift+F10 to review branching and other program actions.
 
Tip: Use History On together with breakpoints to review any
     group of 20 consecutive statements in your program.