How to set breakpoints programmatically in Visual C++?

Question

What I am trying to do is to monitor memory value changes at some specific addresses, like binding a callback func to the 'onChange' event.

One idea for now that I can think up is to use memory write breakpoint. So how to manipulate breakpoints programmatically in Visual C++?

You want set breakpoints at run-time? - Why you don't use conditional breakpoints? — masoud, Apr 13 '13 at 09:51
http://stackoverflow.com/a/1261763/1762344 , http://stackoverflow.com/a/8008943/1762344 — Evgeny Panasyuk, Apr 13 '13 at 10:04

score 6 · Answer 1 · answered Apr 13 '13 at 10:41

6

If you need to break into the debugger, use the DebugBreak function, if necessary under a #ifdef _DEBUG #endif block

answered Apr 13 '13 at 10:41

Edward Clements

1

Also `_DEBUG` is irrelevent. The right thing is to use `IsDebuggerPresent` – ZAB Jun 29 '16 at 15:03

score 3 · Accepted Answer · answered Apr 13 '13 at 10:09

3

answered Apr 13 '13 at 10:09

Saqlain

Fernando Gonzalez Sanchez · Answer 3 · 2014-11-21T00:21:00.263

1

You can also place in your code:

__asm { int 3 }

If you are running under the VS debugger, that will invoke the breakpoint handler.

UPDATE: Actually it is the same than using the MSVC instrinsic __debugbreak (http://msdn.microsoft.com/en-us/library/f408b4et.aspx)

edited Nov 21 '14 at 00:21

answered Nov 20 '14 at 23:48

score 1 · Answer 4 · answered Jan 26 '17 at 15:23

1

I've had great success with the hwbrk project.

answered Jan 26 '17 at 15:23

ulatekh

4 Answers4