Q137154: FIX: ClassWizard Generates Bad Code for Tree View Messages

Article: Q137154
Product(s): Microsoft C Compiler
Version(s): winnt:2.1
Operating System(s): 
Keyword(s): kbwizard kbMFC kbTreeView kbVC200bug kbVC210bug kbVC220bug kbVC400fix kbGrpDSMFCATL kbN
Last Modified: 06-MAY-2001

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The information in this article applies to:

- The ClassWizard, used with:
   - Microsoft Visual C++, 32-bit Editions, version 2.1 
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SYMPTOMS
========

The Class Wizard generates the following incorrect code for the
TVN_BEGINLABELEDIT, TVN_ENDLABELEDIT, TVN_GETDISPINFO, TVN_SETDISPINFO, and
TVN_KEYDOWN Tree View Control notification messages.

  void CMyDialog::OnXXXXtreeview1(NMHDR* pNMHDR, LRESULT* pResult)
  {
     NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;
     // TODO: Add your control notification hander code here
     *pResult = 0;
  }

RESOLUTION
==========

For TVN_BEGINLABELEDIT, TVN_ENDLABELEDIT, TVN_GETDISPINFO, and TVN_SETDISPINFO,
the pNMHDR parameter should be cast to a TV_DISPINFO*. For example:

  void CMyDialog::OnXXXXtreeview1(NMHDR* pNMHDR, LRESULT* pResult)
  {
     TV_DISPINFO* pTVDispInfo = (TV_DISPINFO*)pNMHDR;
     // TODO: Add your control notification hander code here
     *pResult = 0;
  }

For TVN_KEYDOWN, the pNMHDR parameter should be cast to a TV_KEYDOWN*. For
example:

  void CMyDialog::OnXXXXtreeview1(NMHDR* pNMHDR, LRESULT* pResult)
  {
     TV_KEYDOWN* pTVKeyDown = (TV_KEYDOWN*)pNMHDR;
     // TODO: Add your control notification hander code here
     *pResult = 0;
  }

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article. This problem was corrected in Visual C++ version 4.0.

Additional query words: 2.10

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Keywords          : kbwizard kbMFC kbTreeView kbVC200bug kbVC210bug kbVC220bug kbVC400fix kbGrpDSMFCATL kbNoUpdate kbbuglist kbfixlist
Technology        : kbVCsearch kbAudDeveloper kbClassWizard
Version           : winnt:2.1
Issue type        : kbbug
Solution Type     : kbfix

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