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CWnd derived class in ATL object

I have a control that I've written with MFC, and I would like to make it accessible to VB (and anything else) as an ActiveX control. I knocked out a demo ATL object (never used it before now), but I can't work out how to host my CWnd derived control within the ActiveX control.

Could I have some advice about a strategy to do this - I don't really want detailed example code (although a few pointers would be nice).

IainHere

ASKER

BTW: I don't want to use the MFC ActiveX control wizard - I want to write this control using ATL (as a learning exercise), but I need to learn how to do it. For instance, should I derive my control from CWindow instead of CWnd, and how would this help me house it. What problems am I likely to encounter?

Thanks.

ASKER CERTIFIED SOLUTION

ShaunWilde

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IainHere

ASKER

OK. Using the CEdit method, I want to replace the member control that is the edit with my own control:

CContainedWindow m_ctlEdit;

CMyControl() :
m_ctlEdit(_T("Edit"), this, 1)
{
m_bWindowOnly = TRUE;
}

I guess I replace this code with:

CContainedWindow m_ctlMine; etc...

But how do I get the "LPTSTR lpszClassName" for the CContainedWindow constructor? How do I find out what that is - do I have to register the class with something?

Thanks.

ShaunWilde

I'd try just replacing it completely ? eg use CMyWindow rather than CContaindWindow

IainHere

ASKER

OK, that sounds good, but I need to pass a CWnd* to the Create() function in my control (which is of course passed on to the CWnd::Create() function).

Do you know how I would get that from the control I've made in the way you describe above?

>(this member object is normally replaced by my custom window)

I guess you have this problem too, or do you do something else?

ShaunWilde

CWindow or CWnd ?? use the HWND and pass that around -

what does your control look like? - just .h file will suffice - it might speed thingsup :)

IainHere

ASKER

Thanks for the help Shaun. To be honest, after having spent a bit longer looking at these things, I've decided to write it as an MFC ActiveX control for now.

Perhaps I'll have time to do the ATL thing another day :-)

ShaunWilde