Debug menu 

Provides commands to debug a program, process, or core file; customize options; and manage sessions. 

Execute menu 

Provides commands to run or single-step through lines of code. 

Data menu 

Provides commands to evaluate the selection in the Debugging window. 

Threads menu 

Provides commands to hide and expose threads in the Threads/Sessions pane. 

Stack menu 

Provides commands to move up, down, and pop the stack. 

Checks menu 

Provides commands to enable and use runtime checking. 

Windows menu 

Provides commands to open the Breakpoints, Data Display, and other debugging windows. 

Help menu 

Provides commands to display online help. 

Start button 

Runs the program from the beginning. 

Up button 

Moves up the call stack one function. 

Down button 

Moves down the call stack one function. 

Go button 

Runs the program from the current location. 

Interrupt button 

Interrupts the program; equivalent to the dbx command Ctrl+C.

Step Into button 

Single-steps into a function. 

Step Over button 

Single-steps over the current function. 

Step Out button 

Steps past the end of the current function. 

Fix button 

Recompiles all changed files and continue debugging. 

Debug Status area 

Displays information about the state of your program. 

Data History pane 

Displays history when evaluating expressions, querying for type, and modifying values. 

Threads/Sessions pane 

If the Threads radio button is selected, lists information about the threads in a multithreaded program. If the Sessions radio button is selected, lists current debugging sessions.  

Stack pane 

Shows you the current state of the call stack and lets you move to different stack frames. 

Dbx Commands window 

Lets you enter and view the output of dbx commands (displayed only if Show Dbx Commands Window in a separate window is set to No in the Window Layout Category in the Debugging Options dialog box).

Message area 

Displays messages about operations in the window.