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Creation of a Tree Control

The concept of a tree list is implemented in the MFC library by the CTreeCtrl class. To create a tree list on a dialog box or a form, at design time, on the Controls toolbox, click the Tree Control button and click the desired area on a dialog box or a form:

Alternatively, to programmatically create a tree list, declare a variable or a pointer to CTreeCtrl. To initialize the control, call its Create() method. Here is an example:

private:
	CTreeCtrl *TreeSoft;
};

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// Tree1Dlg.cpp : implementation file
//

CTree1Dlg::CTree1Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTree1Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CTree1Dlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

	TreeSoft = new CTreeCtrl;
}

CTree1Dlg::~CTree1Dlg()
{
	delete TreeSoft;
}



BOOL CTree1Dlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	TreeSoft->Create(WS_CHILD | WS_VISIBLE | WS_BORDER | WS_TABSTOP,
		CRect(10, 10, 240, 280), this, 0x1221);

	return TRUE;  // return TRUE  unless you set the focus to a control
}