Teach Yourself Borland C++ in 14 Days - portal

NOTE
Using the Debugger
in the Evaluate field and press Enter, the result, 768, will be displayed
in the Result field.
You can also enter logical expressions in the Evaluate field and have the
result shown in the Results field. For instance, if you entered
20 * 20 == 400
the Result field would show true. The only problem with this scenario
is that the program must be stopped at a breakpoint for the Evaluate/
Modify dialog box to function.
If you want to change the value of a variable, enter a new value for the variable in the New
Value field and click the Modify button. The variable’s value will be changed to the new value
entered. When you click the Run button to restart the program (or continue stepping), the
new value will be used.
View Call Stack
The Evaluate/Modify dialog box does not update automatically when
you step through your code as do the Watch List and Debug Inspector.
If your code modifies the variable in the Evaluate/Modify dialog box,
you must click the Evaluate button again to see the results. A typical
interaction with this dialog box would be to evaluate a variable or
expression and then immediately close the Evaluate/Modify dialog box.
While your program is running, you can view the call stack to inspect any functions your
program called. From the main menu, choose View | Call Stack to display the Call stack
window. This window displays a list of the functions that were called by your program and
the order in which they were called. The most recently called function will be at the top of
the window. The functions listed will be a combination of functions in your program, VCL
methods, and functions contained in Windows DLLs. Figure 11.9 shows the call stack as it
appears after you run the DebugTst program you created earlier in the chapter.
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