Re: Module handle of a given object instance

From:
"Doug Harrison [MVP]" <dsh@mvps.org>
Newsgroups:
microsoft.public.vc.mfc
Date:
Thu, 17 Jul 2008 10:48:31 -0500
Message-ID:
<mjpu74lek350vr29i74q6sc4eirilkketd@4ax.com>
On Thu, 17 Jul 2008 16:58:04 +0200, "Giovanni Dicanio"
<gdicanio@_NOSPAM_email_DOT_it> wrote:

"Andy pandy 2" <devteam@transvalor.com> ha scritto nel messaggio
news:b8077a23-c297-4d51-be53-d927b9aaaa33@z66g2000hsc.googlegroups.com...

Does anybody know how to obtain a handle to the module in which a
given object instance was created (allocated) ?

For example, in DLL2.dll, I allocate an object

MyDerivedObject* pInstance = new MyDerivedObject()

MyDerivedObject derives from MyObject, a base class implmented in
another dll, DLL1.dll .

Then I use base class methods located in DLL1.dll

pInstance->ABaseClassMethod()

Witihin MyObject::ABaseClassMethod(), I would like to know where
"this" was allocated, i.e. get a handle to DLL2.dll . I would like to
avoid using filenames, to keep things general.


I'm not sure, but perhaps GetModuleHandleEx may help?

http://msdn.microsoft.com/en-us/library/ms683200(VS.85).aspx


Something like that can be made to work for globals, but I don't see how it
would help if the modules are sharing the same heap, as they should be
given the derivation involved.

--
Doug Harrison
Visual C++ MVP

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