PRODUCT  :  Borland C++                           NUMBER  :  1392
  VERSION  :  3.x
       OS  :  WIN
     DATE  :  October 25, 1993                         PAGE  :  1/1

    TITLE  :  Setting breakpoints in a DLL




  Trying to set a breakpoint in a DLL is very simple once the DLL
  and calling program are loaded in the proper order. The common
  mistake made is loading the calling program in an attempt to the
  DLL. Actually you need to do the reverse, load the DLL then
  execute the calling program. The following steps outline the
  chain of events you need to follow.

  1. From the Windows Program Manager double-click on the TDW icon
  to run the debugger.

  2. Next hit the F3 key to bring up the "Load Module" dialog and
  Alt-d to "Add DLL". In the "DLL name" field type in the full path
  and filename for your DLL. You will see the name of your DLL
  appear in the "DLL's & programs" list followed by a graphic
  character and two exclamation points. This indicates your DLL is
  loaded. Now hit the ESC key to exit this dialog.

  3. Now use Alt-F to drop down the File menu and select "Open...".
  Select any Windows program to load, "Calc.exe" from the windows
  directory for example. Once the program has loaded enter F9 to
  run the program. This will take you out to Windows with the
  selected program running.

  4. Once back in Windows Switch-Task (Alt-Tab) to the Program
  Manager and run the program that calls your DLL. When the calling
  program loads your DLL you will be dropped back into TDW.

  5. Now that your back in the debugger you can set breakpoints in
  your DLL. After setting your breakpoints enter F9 to start the
  DLL running again. When your calling program hits the breakpoint
  in your DLL you will once again be dropped back into the debugger
  at the breakpoint.

  As you can see the process is simple once you know the proper
  order to load and execute the files. Have a exhilarating hacking
  session.


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  subject to the terms of the No-Nonsense License Statement that
  you received with the Borland product to which this information
  pertains.