class CSplitterWnd ：public CSplitterWnd

class CMySplitterWnd :
 public CSplitterWnd
{
public:
 int m_cx;
 int m_cy;
 void HideSplitter();
 void ShowSplitter();
public:
 CMySplitterWnd(void);
 ~CMySplitterWnd(void);
 DECLARE_MESSAGE_MAP()
 afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
};
#include "StdAfx.h"
#include "MySplitterWnd.h"
CMySplitterWnd::CMySplitterWnd(void)
{
}
CMySplitterWnd::~CMySplitterWnd(void)
{
}
BEGIN_MESSAGE_MAP(CMySplitterWnd, CSplitterWnd)
 ON_WM_LBUTTONDOWN()
END_MESSAGE_MAP()
void CMySplitterWnd::OnLButtonDown(UINT nFlags, CPoint point)
{
 // TODO: 在此添加消息处理程序代码和/或调用默认值
 //CSplitterWnd::OnLButtonDown(nFlags, point);
}
void CMySplitterWnd::HideSplitter()
{
 m_cx=m_cxSplitterGap;//save previous cx
 m_cy=m_cxSplitterGap;//save previous cy
 m_cxSplitterGap=1;
 m_cySplitterGap=1;
}
void CMySplitterWnd::ShowSplitter()
{
 m_cxSplitterGap=m_cx;
 m_cySplitterGap=m_cy;
}