MFC Dialog based

1. Tree

14. Add the following variables:
Ctrl ID Var name Category Var type
IDC_EDIT1 m_str Value CString
IDC_TREE1 m_ctrlTree Control CTreeCtrl

15. In TreeDlg.h declare the member var:
………..
public:
CString m_str;
CTreeCtrl m_ctrlTree;
CImageList m_image;
};

16. Initialize the var in CTreeDlg::OnInitDialog()
…………………
// TODO: Add extra initialization here
m_image.Create(IDB_BITMAP1, 16, 1, RGB(12, 15, 18));
m_ctrlTree.SetImageList(&m_image, TVSIL_NORMAL);
return TRUE; // return TRUE unless you set the focus to a control
}

19. void CTreeDlg::OnBnClickedButton1()
{
// TODO: Add your control notification handler code here
UpdateData(TRUE);
m_ctrlTree.InsertItem(m_str, 0, 1, TVI_ROOT);
m_ctrlTree.SetFocus();
}

22. void CTreeDlg::OnBnClickedButton2()
{
// TODO: Add your control notification handler code here
UpdateData(TRUE);
HTREEITEM ht = m_ctrlTree.GetSelectedItem();
m_ctrlTree.InsertItem(m_str, 0, 1, ht);
m_ctrlTree.SetFocus();
}