The Diagram Trace Utility lets you toggle a watchpoint (data breakpoint) on selected variable views using the pop-up menu option Toggle Watchpoint in the Outline view. This toggle adds a data breakpoint to the Breakpoints view for each selected variable if no watchpoint exists, or removes the existing breakpoint associated with each selected variable.
The inherent condition associated with this data breakpoint is break if value has changed. The value of the selected variable view is evaluated before the execution of each statement. When the value changes, program execution is suspended at the current executable statement.
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