FIX: ClassWizard Generates Bad Code for Tree View 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;
}