**********************************************************************

      // WorkspaceBar.cpp : implementation of the CWorkspaceBar class

      //

      

      BEGIN_MESSAGE_MAP(CWorkspaceBar, CBCGSizingControlBar)

      //{{AFX_MSG_MAP(CWorkspaceBar)

      ON_WM_CREATE()

      ON_WM_SIZE()

      ON_NOTIFY(TVN_SELCHANGED, 1, OnSelectTree)

      //}}AFX_MSG_MAP

      END_MESSAGE_MAP()

      

      int CWorkspaceBar::OnCreate(LPCREATESTRUCT lpCreateStruct) 

      {

      ....

      // Create tabs window:

      if (!m_wndTabs.Create (CBCGTabWnd::STYLE_3D, rectDummy, this, 1))

      {

      TRACE0("Failed to create workspace tab window
");

      return -1; // fail to create

      }

      

      m_wndTabs.SetImageList (IDB_WORKSPACE, 16, RGB (255, 0, 255));

      

      // Create tree windows.

      // TODO: create your own tab windows here:

      const DWORD dwViewStyle = WS_CHILD | WS_VISIBLE | TVS_HASLINES

      | 

      

      TVS_LINESATROOT | TVS_HASBUTTONS;

      

      if (!m_wndTree1.Create (dwViewStyle, rectDummy, &m_wndTabs, 2) ||

      !m_wndTree2.Create (dwViewStyle, rectDummy, &m_wndTabs, 3))

      {

      TRACE0("Failed to create workspace view
");

      return -1; // fail to create

      }

      ...

      }

      

      void CWorkspaceBar::OnSelectTree(NMHDR* pNMHDR, LRESULT* pResult) 

      {

      NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;

      *pResult = 0;

      }

      

      **********************************************************************

      // WorkspaceBar.h : interface of the CWorkspaceBar class

      //

      // Generated message map functions

      protected:

      //{{AFX_MSG(CWorkspaceBar)

      afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);

      afx_msg void OnSize(UINT nType, int cx, int cy);

      afx_msg void OnSelectTree(NMHDR* pNMHDR, LRESULT* pResult);

      //}}AFX_MSG

      DECLARE_MESSAGE_MAP()

      };

BOOL CMyTabCtrl::OnNotify (WPARAM wParam, LPARAM lParam, LRESULT* pResult){ 
      ASSERT_VALID (this); 

      BOOL bRes = CBCGTabWnd::OnNotify (wParam, lParam, pResult); 

      NMHDR* pNMHDR = (NMHDR*)lParam; ASSERT (pNMHDR != NULL);

      if (pNMHDR->code == TTN_SHOW && !m_bFlat) { m_ToolTip.SetWindowPos (&wndTop, 
      -1, -1, -1, -1, SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOSIZE); }

      if (pNMHDR->code == HDN_ITEMCHANGED) { SynchronizeScrollBar ();

      }

      if (wParam > 0) {

      CWnd* pChild = GetDlgItem(wParam);

      if (pChild)

      {

      if (IsChild(pChild))

      {

      GetOwner()->SendMessage(WM_NOTIFY,wParam,lParam);

      }

      }

      }

      return bRes;

      }

ON_NOTIFY(NM_DBLCLK,ID_LIST,OnListDblClk)...void 
      CWorkspaceBar::OnListDblClk(NMHDR* pNMHDR, LRESULT* pResult) { ... *pResult 
      = 0;}