该控件来源于Xtreme Toolkit,我对其进行了修改，使其不依赖于类库独立存在，由于我没有运用XT的其他类，可能你会觉得它没有在类库中的华丽，但相对于其小巧的体格而言，已经很难得了。

源文件包括两个头文件，两个执行文件：XTMemDC.h，XTMemDC.cpp,XTOutBarCtrl.h,
XTOutBarCtrl.cpp.

其中XTMemDC是一个CDC继承类，用于辅助功能。

该控件的使用方法：

1、用mfc sdi wizard生成一个子SDI程序。

2、在MainFrm.h头部加入#include "XTOutBarCtrl.h"

3、在MainFrm.h是加入成员变量

CSplitterWnd m_wndSplitter;
CXTOutBarCtrl m_wndOutlookBar;
CImageList m_ImageLarge;
CImageList m_ImageSmall;
bool  m_bDestroy;
 4、CMainFrame增加消息映射函数
BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)
{
 // create splitter window
 if (!m_wndSplitter.CreateStatic(this, 1, 2))
  return FALSE;

// Here we create the outbar control using the splitter as its parent
 // and setting its id to the first pane.
 if (!m_wndOutlookBar.Create(WS_CHILD|WS_VISIBLE|WS_CLIPCHILDREN, CRect(0,0,0,0),
  &m_wndSplitter, m_wndSplitter.IdFromRowCol(0, 0), OBS_XT_DEFAULT))
 {
  TRACE0("Failed to create outlook bar.");
  return FALSE;
 }

if (!m_wndSplitter.CreateView(0, 1, pContext->m_pNewViewClass,
  CSize(100, 100), pContext))
 {
  m_wndSplitter.DestroyWindow();
  return FALSE;
 }

// Set the background and text color of the outlook bar.
 m_wndOutlookBar.SetBackColor(RGB(0x3a,0x6e,0xa5));
 m_wndOutlookBar.SetTextColor(RGB(0xff,0xff,0xff));

// Set the default sizes for the splitter panes.
 CRect r;
 GetClientRect(&r);
 m_wndSplitter.SetColumnInfo( 0, r.Width()/4, 0 );
 m_wndSplitter.RecalcLayout();

// Add items to the outlook bar.
 InitializeOutlookBar();
 return TRUE;
}

5、CMainFrame增加成员函数 void CMainFrame::InitializeOutlookBar()
{
 // Create the image lists used by the outlook bar.
 m_ImageSmall.Create (16, 16, ILC_COLOR16|ILC_MASK, 2, 1);
 m_ImageLarge.Create (32, 32, ILC_COLOR16|ILC_MASK, 2, 1);

// initiailize the image lists.
 for (int i = 0; i < 11; ++i)
 {
  HICON hIcon = AfxGetApp()->LoadIcon(nIcons[i]);
  ASSERT(hIcon);

m_ImageSmall.Add(hIcon);
  m_ImageLarge.Add(hIcon);
 }

int iFolder; // index of the added folder
 // set the image lists for the outlook bar.
 m_wndOutlookBar.SetImageList(&m_ImageLarge, OBS_XT_LARGEICON);
 m_wndOutlookBar.SetImageList(&m_ImageSmall, OBS_XT_SMALLICON);

// Add the first folder to the outlook bar.
 iFolder = m_wndOutlookBar.AddFolder(_T("Shortcuts 1"), 0);

// Add items to the folder, syntax is folder, index, text, image, and item data.
 m_wndOutlookBar.InsertItem(iFolder, 1, _T("Item 1"), 0, NULL);
 m_wndOutlookBar.InsertItem(iFolder, 2, _T("Item 2"), 1, NULL);
 m_wndOutlookBar.InsertItem(iFolder, 3, _T("Item 3"), 2, NULL);
 m_wndOutlookBar.InsertItem(iFolder, 4, _T("Item 4"), 3, NULL);
 m_wndOutlookBar.InsertItem(iFolder, 5, _T("Item 5"), 4, NULL);
 m_wndOutlookBar.InsertItem(iFolder, 6, _T("Item 6"), 5, NULL);

// Add the second folder to the outlook bar.
 iFolder = m_wndOutlookBar.AddFolder(_T("Shortcuts 2"), 1);

// Add items to the folder, syntax is folder, index, text, image, and item data.
 m_wndOutlookBar.InsertItem(iFolder, 1, _T("Item 1"), 0, NULL);
 m_wndOutlookBar.InsertItem(iFolder, 2, _T("Item 2"), 1, NULL);

// Add the tree control to the outlook bar.
//xu iFolder = m_wndOutlookBar.AddFolderBar(_T("Tree Control"), &m_wndTreeCtrl );

// Set the default font used by the outlook bar.
//xu m_wndOutlookBar.SetFontX(&xtAfxData.font);

// We want to receive notification messages.
 m_wndOutlookBar.SetOwner(this);

// Select the first folder in the bar.
 m_wndOutlookBar.SetSelFolder(iFolder);

// Sizing for splitter
 CRect r;
 GetClientRect(&r);
 m_wndSplitter.SetColumnInfo( 0, r.Width()/7, 0 );
 m_wndSplitter.SetColumnInfo( 1, r.Width()/5, 0 );
// m_wndSplitter1.SetSplitterStyle(XT_SPLIT_NOFULLDRAG);
}

6、CMainFrame增加消息映射 LRESULT CMainFrame::OnOutbarNotify(WPARAM wParam, LPARAM lParam)
{
 int nBarAction = (int)wParam;

// Cast the lParam to a XT_OUTBAR_INFO* struct pointer.
 XT_OUTBAR_INFO* pOBInfo = (XT_OUTBAR_INFO*)lParam;
 ASSERT(pOBInfo);

switch (nBarAction)
 {
 case OBN_XT_ITEMCLICK:
  TRACE2( "Item selected: %d, Name: %s.\n", pOBInfo->nIndex, pOBInfo->lpszText);
  break;
 case OBN_XT_FOLDERCHANGE:
  TRACE2( "Folder selected: %d, Name: %s.\n", pOBInfo->nIndex, pOBInfo->lpszText);
  break;
 case OBN_XT_ONLABELENDEDIT:
  TRACE2( "Item edited: %d, New name: %s.\n", pOBInfo->nIndex, pOBInfo->lpszText);
  break;
 case OBN_XT_ONGROUPENDEDIT:
  TRACE2( "Folder edited: %d, New name: %s.\n", pOBInfo->nIndex, pOBInfo->lpszText);
  break; 
 case OBN_XT_DRAGITEM:
  TRACE3( "Dragging From: %d, To: %d, Name: %s.\n", pOBInfo->nDragFrom,
   pOBInfo->nDragTo, pOBInfo->lpszText);
  break;
 case OBN_XT_ITEMHOVER:
  TRACE2( "Hovering Item: %d, Name: %s.\n", pOBInfo->nIndex, pOBInfo->lpszText);
  break;
 case OBN_XT_DELETEITEM:
  if (!m_bDestroy && AfxMessageBox(_T("Are you sure you want to remove this folder shortcut?"),
   MB_ICONWARNING|MB_YESNO) == IDNO)
  {
   // The user selected No, return FALSE to abort the action.
   return FALSE;
  }
  TRACE2( "Item deleted: %d, Name: %s.\n", pOBInfo->nIndex, pOBInfo->lpszText);
  break;
 case OBN_XT_DELETEFOLDER:
  if (!m_bDestroy && AfxMessageBox(_T("Are you sure you want to remove the specified folder?"),
   MB_ICONWARNING|MB_YESNO) == IDNO)
  {
   // The user selected No, return FALSE to abort the action.
   return FALSE;
  }
  TRACE2( "Folder deleted: %d, Name: %s.\n", pOBInfo->nIndex, pOBInfo->lpszText);
  break;
 }

return TRUE;
}

还有其他一些内容请参见源程序，愿这个控件能对您的编程有所帮助，谢谢。