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Subclassing (superclassing?) win controls in (MFC not ATL) activex control

Posted on 1998-06-21
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Last Modified: 2013-11-25
I would like to sub class / superclass my new control (MFC) from a standard tree control, without having to use ATL.  

I have a cs.lpszClassNamer("SysTreeView32");
 statement in my code (created by AppWizard), but would like to replace the SystreeView32 with my own class, which I have previously tested in a standard MFC app.  I cannot simply replace the name and include the class files though, as the execution of the control seems to fail.


Why.

Is there something I can do?

Regards

Oscar
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Question by:ossentoo
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alexo earned 100 total points
ID: 1166405
Check http://www.frogpond.org/~markg/articles.html.
It contains (among others) articles about window subclassing and superclassing.
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by:alexo
ID: 1166406
Also see http://www.eu.microsoft.com/win32dev/ui/classy32.htm for some explanations

Under MFC, you can use CWnd::SubclassWindow or CWnd::SubclassDlgItem
Also see KB article Q103786 and the "Making and Using Controls" topic in your online help.

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Expert Comment

by:alexo
ID: 1166407
I keep finding more and more info...
  http://www.develop.com/fritz/Articles/cpprep0797.htm
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Author Comment

by:ossentoo
ID: 1166408
Have had a look at this, but I think you have misunderstood the question. Control in MFC.
I have subclassed an ActiveX control from SysTreeView32. I also have class CDireTree which I have previously developed.

I would like to know how I can subclass the control from my own class (CDireTree) instead of deriving it directly from CTreeCtrl (effectively).

I have tried registering a new Windows class, AfxRegisterClass, but how do I then make the new registered windows class use my class or methods?

The alternate method is to attach the control's SysTreeView32 CtreeCtrl's object to my own class. But again, where and how do I do this? I cannot find any way of doing it at all.

Regards

Oscar Ssentoogo


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Expert Comment

by:DAE
ID: 9728693
I have the same problem. Do you solve it???
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