Re: debugger extentions ADDIN, how to resolve pointers?

From:
"David Ching" <dc@remove-this.dcsoft.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Mon, 2 Jun 2008 22:27:11 -0700
Message-ID:
<PC41k.2945$uE5.2429@flpi144.ffdc.sbc.com>
"Colin Peters" <cpeters@coldmail.com> wrote in message
news:484414fa$1_6@news.bluewin.ch...

Hi,

I've written a couple of functions to help to display more intelligible
values in the debugging window. One was to show the human readable form of
COleDateTime. The other was to walk the first record of an ADO recordset.

They are implemented in a dll which is called by the debugger through
references in the AutoExp.dat file.

The problem is that when I try to evaluate a pointer to an ADO recordset,
or any other pointer for that matter, I have problems because the pointer
value has no meaning within the context of the debugger process. The
COleDateTime works OK because I read a copy of the whole object.

How can this be done? The debugger somehow manages to do this because I
have several structures which are waist deep in pointer to pointer to
pointer and I can happily go through the tree of the structure inspecting
these values. What I want to do is to provide particular object swith one
line descriptions of their contents. In my case this can usually be
derived from two or three deep buried member variables.

Anybody got any ideas?


See the video I created on the topic:
http://msdn.microsoft.com/en-us/visualc/bb684927.aspx

Essentially, your callback is passed an interface, which I think has a
method called something like ReadDebuggeeMemory() or something like that.
It's been awhile since I looked at this.

-- David

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