FIX: ClassWizard Generates Bad Code for Tree View Messages

ID: Q137154

The information in this article applies to:

The ClassWizard, included with:
- Microsoft Visual C++, 32-bit Editions, version 2.1

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

Keywords : kbwizard kbMFC kbVC
Version : 2.10
Platform : NT WINDOWS
Issue type :