theadctl.h

一个完整的编辑器的代码（很值得参考

#ifndef __THEADCTL_H__INCLUDED__
#define __THEADCTL_H__INCLUDED__

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000

#include "appheadc.h"
#include "apptreec.h"

/////////////////////////////////////////////////////////////////////////////
// CTreeHeaderCtrl window

#pragma warning ( disable : 4512 )
class CTreeHeaderCtrl : public CAppHeaderCtrl
  {
    // Construction
public :
    CTreeHeaderCtrl ();

    // Attributes
public :
    CAppTreeCtrl * m_pctlTree;
    CArray < CRect, LPRECT > m_arrRect;
    bool m_bDirtyCache;

    // Operations
public :
    BOOL GetCachedItemRect (int nIndex, LPRECT lpRect);
    void RefreshItemRectCache ();

    // Overrides
    // ClassWizard generated virtual function overrides
    //{{AFX_VIRTUAL(CTreeHeaderCtrl)
    //}}AFX_VIRTUAL

    // Implementation
public :
    virtual ~CTreeHeaderCtrl ();

    // Generated message map functions
protected :
    //{{AFX_MSG(CTreeHeaderCtrl)
    afx_msg void OnItemChanged (NMHDR * pNMHDR, LRESULT * pResult);
    afx_msg void OnTrack (NMHDR * pNMHDR, LRESULT * pResult);
    //}}AFX_MSG

    DECLARE_MESSAGE_MAP ()
  };
#pragma warning ( default : 4512 )

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // __THEADCTL_H__INCLUDED__