BCG例子BCGPExplorer：
1.BCG的菜單、工具欄、動畫圖標和地址欄
這是BCG的主要特色，也比較繁瑣。

（1）如果要支持自定義工具。

首先在String表定義入口ID：ID_TOOLS_ENTRY，與某菜單項關聯。然后定義連續的ID，如ID_USER_TOOL1、ID_USER_TOOL2......。

在App下增加 

EnableUserTools (ID_TOOLS_ENTRY, ID_USER_TOOL1, ID_USER_TOOL10);

（2）主要是修改CMainFrame

頭文件聲明

 CBCGPMenuBar  m_wndMenuBar;
  CBCGPStatusBar m_wndStatusBar;
  CBCGPToolBar  m_wndToolBar;
  CBCGPReBar   m_wndReBar;  //菜單、工具欄、地址欄的容器
  CBCGPAnimCtrl m_wndAnimate;//動畫控件
  CComboBoxEx  m_wndAddress;//地址欄

增加響應自定義工具的消息函數OnViewCustomize

手動添加消息響應

 afx_msg LRESULT OnToolbarReset(WPARAM,LPARAM);
  afx_msg LRESULT OnToolbarContextMenu(WPARAM,LPARAM);

 虛函數

virtual BOOL OnShowPopupMenu (CBCGPPopupMenu* pMenuPopup);

Cpp文件

 ON_REGISTERED_MESSAGE(BCGM_RESETTOOLBAR, OnToolbarReset)
  ON_REGISTERED_MESSAGE(BCGM_TOOLBARMENU, OnToolbarContextMenu)

OnCreate（）函數

 CBCGPToolBar::EnableQuickCustomization ();

 CBCGPToolBar::SetSizes (CSize (28, 28), CSize (22, 22));//工具欄大小
  CBCGPToolBar::SetMenuSizes (CSize (22, 22), CSize (16, 16));//工具欄中下拉菜單項大小

//指定常用的工具，其它會自動收縮。每個下拉（pulldown）菜單條至少要有一項

 CList<UINT, UINT> lstBasicCommands; 

 lstBasicCommands.AddTail (ID_VIEW_TOOLBARS);
  lstBasicCommands.AddTail (ID_APP_EXIT);
  lstBasicCommands.AddTail (ID_APP_ABOUT);
  lstBasicCommands.AddTail (ID_VIEW_TOOLBAR);
  lstBasicCommands.AddTail (ID_VIEW_CUSTOMIZE);
  lstBasicCommands.AddTail (ID_COMMAND_HISTORY);
  lstBasicCommands.AddTail (ID_VIEW_LARGEICON);
  lstBasicCommands.AddTail (ID_VIEW_SMALLICON);
  lstBasicCommands.AddTail (ID_VIEW_LIST);
  lstBasicCommands.AddTail (ID_VIEW_DETAILS);
  lstBasicCommands.AddTail (ID_EDIT_CUT);
  lstBasicCommands.AddTail (ID_EDIT_COPY);
  lstBasicCommands.AddTail (ID_EDIT_PASTE);

 CBCGPToolBar::SetBasicCommands (lstBasicCommands);

 if (!m_wndMenuBar.Create (this))//菜單的創建
  {
   TRACE0( "Failed to create menubar\n");
   return -1;      // fail to create
  }

 m_wndMenuBar.SetBarStyle(m_wndMenuBar.GetBarStyle() | CBRS_SIZE_DYNAMIC);

 // Remove menubar gripper and borders:
  m_wndMenuBar.SetBarStyle (m_wndMenuBar.GetBarStyle() &
   ~(CBRS_GRIPPER | CBRS_BORDER_TOP | CBRS_BORDER_BOTTOM | CBRS_BORDER_LEFT | CBRS_BORDER_RIGHT));

//動畫控件的創建，AFX_IDW_TOOLBAR為標準ID，IDB_ANIMATION是連續位圖

 if (!m_wndAnimate.Create (_T(""), WS_CHILD | WS_VISIBLE, CRect(0, 0, 20, 20), this, AFX_IDW_TOOLBAR + 2) ||
   !m_wndAnimate.SetBitmap (IDB_ANIMATION, 20))
{
   TRACE0( "Failed to create aimation\n");
   return -1;      // fail to create
  }

 m_wndAnimate.Play (500);

//檢測顏色深度是256還是真彩色

 CClientDC dc (this);
  BOOL bIsHighColor = dc.GetDeviceCaps (BITSPIXEL) > 8;

 UINT uiToolbarHotID = bIsHighColor ? IDB_TOOLBAR256 : 0;  //IDB_TOOLBAR256真彩色圖像（用作工具欄）
  UINT uiToolbarColdID = bIsHighColor ? IDB_TOOLBARCOLD256 : 0;
  UINT uiMenuID = bIsHighColor ? IDB_MENU256 : IDB_MENU16;

 if (!m_wndToolBar.CreateEx(this) ||
   !m_wndToolBar.LoadToolBar(IDR_MAINFRAME, uiToolbarColdID, uiMenuID, FALSE, 0, 0, uiToolbarHotID))//IDR_MAINFRAME是256色的預定義工具欄
  {
   TRACE0( "Failed to create toolbar\n");
   return -1;      // fail to create
  }

 // Remove toolbar gripper and borders:
  m_wndToolBar.SetBarStyle (m_wndToolBar.GetBarStyle() &
   ~(CBRS_GRIPPER | CBRS_BORDER_TOP | CBRS_BORDER_BOTTOM | CBRS_BORDER_LEFT | CBRS_BORDER_RIGHT));

//創建地址欄

 if (!m_wndAddress.Create (CBS_DROPDOWN | WS_CHILD, CRect(0, 0, 200, 120), this, AFX_IDW_TOOLBAR + 1))
  {
   TRACE0( "Failed to create combobox\n");
   return -1;      // fail to create
  }

 //將各項加入rebar面板
  DWORD dwStyle = RBBS_GRIPPERALWAYS | RBBS_FIXEDBMP | RBBS_BREAK;

 if (!m_wndReBar.Create(this) ||
   !m_wndReBar.AddBar (&m_wndMenuBar) ||
   !m_wndReBar.AddBar ( &m_wndToolBar, NULL, NULL, dwStyle) ||
   !m_wndReBar.AddBar( &m_wndAnimate, NULL, NULL, RBBS_FIXEDSIZE | RBBS_FIXEDBMP) ||
   !m_wndReBar.AddBar( &m_wndAddress, _T("Address"), NULL, dwStyle))
  {
   TRACE0( "Failed to create rebar\n");
   return -1;      // fail to create
  }

 m_wndMenuBar.AdjustLayout ();
  m_wndToolBar.AdjustLayout ();

 //--------------------------------------------------------------
  // Set up min/max sizes and ideal sizes for pieces of the rebar:
  //--------------------------------------------------------------
  REBARBANDINFO rbbi;

 CRect rectToolBar;
  m_wndToolBar.GetItemRect(0, &rectToolBar);

 rbbi.cbSize = sizeof(rbbi);
  rbbi.fMask = RBBIM_CHILDSIZE | RBBIM_IDEALSIZE | RBBIM_SIZE;
  rbbi.cxMinChild = rectToolBar.Width();
  rbbi.cyMinChild = rectToolBar.Height();
  rbbi.cx = rbbi.cxIdeal = rectToolBar.Width() * m_wndToolBar.GetCount ();
  m_wndReBar.GetReBarCtrl().SetBandInfo (1, &rbbi);
  rbbi.cxMinChild = 0;

 CRect rectAddress;
  m_wndAddress.GetEditCtrl()->GetWindowRect(&rectAddress);

 rbbi.fMask = RBBIM_CHILDSIZE | RBBIM_IDEALSIZE;
  rbbi.cyMinChild = rectAddress.Height() + 10;
  rbbi.cxIdeal = 200;
  m_wndReBar.GetReBarCtrl().SetBandInfo (3, &rbbi);//基于上面的AddBar所定的順序

 // 菜單和工具欄允許增加自定義按鈕
  m_wndMenuBar.EnableCustomizeButton (TRUE, (UINT)-1, _T(""));
  m_wndToolBar.EnableCustomizeButton (TRUE, (UINT)-1, _T( ""));

 EnableDocking (CBRS_ALIGN_ANY);

 m_wndReBar.EnableDocking (CBRS_TOP);//可以浮動和停靠
  DockControlBar (&m_wndReBar);

 CString strMainToolbarTitle;
  strMainToolbarTitle.LoadString (IDS_MAIN_TOOLBAR);
  m_wndToolBar.SetWindowText (strMainToolbarTitle);

 // TODO: Remove this if you don't want tool tips
  m_wndMenuBar.SetBarStyle(m_wndMenuBar.GetBarStyle() |
   CBRS_TOOLTIPS | CBRS_FLYBY);
  m_wndToolBar.SetBarStyle(m_wndToolBar.GetBarStyle() |
   CBRS_TOOLTIPS | CBRS_FLYBY);

void CMainFrame::OnViewCustomize()
{
  //------------------------------------
  // Create a customize toolbars dialog:
  //------------------------------------
  CBCGPToolbarCustomize* pDlgCust = new CBCGPToolbarCustomize (this,
   TRUE
   );

 pDlgCust->Create ();
}

LRESULT CMainFrame::OnToolbarContextMenu(WPARAM,LPARAM lp)
{
  CPoint point (BCG_GET_X_LPARAM(lp), BCG_GET_Y_LPARAM(lp));

 CMenu menu;
  VERIFY(menu.LoadMenu (IDR_POPUP_TOOLBAR));

 CMenu* pPopup = menu.GetSubMenu(0);
  ASSERT(pPopup != NULL);

 CBCGPPopupMenu* pPopupMenu = new CBCGPPopupMenu;
  pPopupMenu->Create (this, point.x, point.y, pPopup->Detach ());

 return 0;
}

//替換256色標準工具欄IDR_MAINFRAME為真彩色

afx_msg LRESULT CMainFrame::OnToolbarReset(WPARAM wp, LPARAM)
{
  UINT uiToolBarId = (UINT) wp;
  if (uiToolBarId != IDR_MAINFRAME)
  {
   return 0;
  }

 // Replace "Back" and "Forward" buttons by the menu buttons
  // with the history lists:

 CMenu menuHistory;
  menuHistory.LoadMenu (IDR_HISTORY_POPUP);

 CBCGPToolbarMenuButton btnBack (ID_GO_BACK, menuHistory,
      CImageHash::GetImageOfCommand (ID_GO_BACK), _T("Back"));//帶菜單的按鈕
  btnBack.m_bText = TRUE;
  m_wndToolBar.ReplaceButton (ID_GO_BACK, btnBack);

 m_wndToolBar.ReplaceButton (ID_GO_FORWARD,
   CBCGPToolbarMenuButton (ID_GO_FORWARD, menuHistory,
      CImageHash::GetImageOfCommand (ID_GO_FORWARD), _T( "Forward")));

 // "Folders" button has a text label:
  m_wndToolBar.SetToolBarBtnText (m_wndToolBar.CommandToIndex (ID_VIEW_FOLDERS),
   _T( "Folders"));

 // Replace "Views" button by the menu button:
  CMenu menuViews;
  menuViews.LoadMenu (IDR_VIEWS_POPUP);

 m_wndToolBar.ReplaceButton (ID_VIEW_VIEWS,
   CBCGPToolbarMenuButton ((UINT)-1, menuViews,
      CImageHash::GetImageOfCommand (ID_VIEW_VIEWS), _T( "Views")));

 return 0;
}

BOOL CMainFrame::OnShowPopupMenu (CBCGPPopupMenu* pMenuPopup)
{
  //---------------------------------------------------------
  // 將占位的ID_VIEW_TOOLBARS菜單項替換為IDR_POPUP_TOOLBAR:
  //---------------------------------------------------------
     CFrameWnd::OnShowPopupMenu (pMenuPopup);

    if (pMenuPopup != NULL &&
   pMenuPopup->GetMenuBar ()->CommandToIndex (ID_VIEW_TOOLBARS) >= 0)
     {
   if (CBCGPToolBar::IsCustomizeMode ())
   {
    //----------------------------------------------------
    // Don't show toolbars list in the cuztomization mode!
    //----------------------------------------------------
    return FALSE;
   }

  pMenuPopup->RemoveAllItems ();

  CMenu menu;
   VERIFY(menu.LoadMenu (IDR_POPUP_TOOLBAR));

  CMenu* pPopup = menu.GetSubMenu(0);
   ASSERT(pPopup != NULL);

  pMenuPopup->GetMenuBar ()->ImportFromMenu (*pPopup, TRUE);
     }

 return TRUE;
}