I'm in no way an expert on templates, but since nobody else have found a solution I'll give it a try. I don't see any place where you tell the compiler what TxFunction is to be instantiated to. To be a pointer to a CxClass member taking an int parameter returning void it should be void (CxClass::*)(int) so perhaps you should call UserFunction as obj.m_xObject.UserFunction<void (CxClass::*)(int)>(CxClass::Foo) (i would make a typedef of the member function pointer type!) I haven't tried it so I have no idea if it will work. Cheers Steen. "To claim that computer games influence children is ridiculous. If Pacman had influenced children born in the 80'ies we would see a lot of youngsters running around in dark rooms eating pills while listening to monotonous music"

Hail Darkbyte, No, simply because I don't have anything in C-tors except zeroing a couple of integers. Thanks for the answer though. :)

Because class B inherits from both class A and class iB, it has to deal with two different vtables. Therefore you need to provide method AA of class iA in both vtables and that is the source of the error message: the implementation for class iB is missing. Just write a wrapper method AA in the class B, calling A::AA; this will redirect iB::AA to A::AA. "though nothing  will keep us together  we can beat them  for ever and ever" rechi

Hello! use UndName.Exe and pass full decorated function name to see it's full undecorated name. :)

Thanks Mike, I surely use mechanics that you described, so in my app I have __declspec(dllimport). :) Concerning inline function, if I remove "virtual" when everything's fine. But that's not what I need. I have to use virtual function there. va'Lery

ummmmmm i dont think the technicalities of the storage mechanism is where u want to be looking here ... how its stored is not that important why dont u make some classes for each of the main components in ur design, ie: forest tree leaf etc then worry about the internal storage of each class as u get there personally i would use cobjlist's or some such but ur requirements may be diff "there is no spoon" biz stuff   about me

Hail to you too, comrade. The C++ standard provides something to solve this in the form of Run-Time Type Information (RTTI). For a starter you can look here[^]

Here are two excellent STL references. http://www.sgi.com/tech/stl/ http://www.josuttis.com/libbook/idx.html try() catch(...) // Catch any exceptions. Kuphryn

In a Debug build all heap allocations are initialized to specific values etc. This doesn't happen in Release builds. Check all of your variables are being initialized correctly. Also read: "Surviving the Release Version" http://www.codeproject.com/debug/survivereleasever.asp[^] Neville Franks, Author of ED for Windows. www.getsoft.com Make money with our new Affilate program

Hi, Thanks for the research. :) But I can't implement it due to two problems. First of all, I can't create a dialog in a thread from the template in my dll. Only way to do it is via dll's HMODULE and ::FindResource+::LoadResource and then CreateInderect. I don't think it's normal. Second is that after DoModal I get error message ERROR_RESOURCE_DATA_NOT_FOUND(1812). Even if I create the dialog in the DLL::InitInstance, which is possible to do with normal .Create(id, pWnd), I have the same error in DoModal. Any ideas? :confused: If you did it somehow, maybe you can send me an example? And one small remark, if I use modal dialog in child thread, does that mean that my main thread will be suspended until modal dialog on a screen? Thanks for your help.

think there is only one way to do it and it is creation of my own container. I'd think twice before going into writing your home made container. Why not have containers of smart pointers to containers? Check Boost shared_ptr class template, which automagically gives you ref-counted access to dynamically allocated objects. The hassle of inserting this into your current code should be minimal. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo