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  • MFC框架程序实现十二

    void CMFCTreeDlg::InitTreeCtrl()
    {
        //设置控件的图标列表
        m_ilNormal.Create(IDB_NORMAL,16,1,RGB(0,0,0));
     m_wndTree.SetImageList(&m_ilNormal,TVSIL_NORMAL);
     /*
     //添加测试数据
     HTREEITEM hRoot=m_wndTree.InsertItem("北京市",0,2);
     HTREEITEM hCY=m_wndTree.InsertItem("朝阳区",1,3,hRoot);
     HTREEITEM hHD=m_wndTree.InsertItem("海淀区",1,3,hRoot);
     HTREEITEM hDC=m_wndTree.InsertItem("东城区",1,3,hRoot);
     */
        //设置数据项的高度
     m_wndTree.SetItemHeight(25);
     //插入根目录
     HTREEITEM hRoot=m_wndTree.InsertItem("C:\\",0,2);
     ShowData("C:",hRoot);
     //在根节点展开
     m_wndTree.Expand(hRoot,TVE_EXPAND);

    void CMFCTreeDlg::ShowData(CString strPath, HTREEITEM hParent)
    {
       //防止重复添加
       if (m_wndTree.ItemHasChildren(hParent))
       {
        return;
       }
     
     
       CFileFind find;
       BOOL bRet=find.FindFile(strPath+"\\*.*");
       while(bRet)
       {
        HTREEITEM hItem;//插入节点的节点句柄
        bRet=find.FindNextFile();
        CString strName=find.GetFileName();
        if (!find.IsDots())
        {
         if (find.IsDirectory())
         {
                  hItem=m_wndTree.InsertItem(strName,0,2,
          hParent);
         }
         else
         {
          hItem=m_wndTree.InsertItem(strName,1,3,
                 hParent);
         }
         //保存路径
         CString *pPath=new CString;
         *pPath=find.GetFilePath();
         m_wndTree.SetItemData(hItem,(DWORD)pPath);
        }
       }
       find.Close();
    }

    void CMFCTreeDlg::OnDblclkTree1(NMHDR* pNMHDR, LRESULT* pResult)
    {
     //获取双击时选择的数据项
        LPNMITEMACTIVATE pNMItem=(LPNMITEMACTIVATE)pNMHDR;
     int nSel=pNMItem->iItem;
     if (-1!=nSel)
     {
      CString *pPath=(CString*)
       m_wndList.GetItemData(nSel);
      //MessageBox(*pPath);
      ShowData(*pPath);
     }
     *pResult = 0;
    }
    class CMyDlg : public CDialog
    {
    public:
     CMyDlg(CWnd* pParent = NULL);   // standard constructor

     enum { IDD = IDD_DIALOG1 };
     protected:
     virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
    protected:
     DECLARE_MESSAGE_MAP()
    };


     HTREEITEM hCurItem=m_wndTree.GetSelectedItem();
     CString* pPath=(CString*)
      m_wndTree.GetItemData(hCurItem);
     ShowData(*pPath,hCurItem);
     *pResult = 0;
    }

    //线程函数
    UINT WorkerThreadProc(LPVOID lParam)
    {
       CMFCThreadDlg *pDlg=(CMFCThreadDlg *)lParam;
       for (int i=0;i<10;i++)
       {
        pDlg->m_wndList.AddString("Hello worker");
           Sleep(100);
       }
       return 0;

    }
    void CMFCThreadDlg::OnWorker()
    {
     AfxBeginThread(WorkerThreadProc,this);
    }
    #include "MyThread.h"
    void CMFCThreadDlg::OnUi()
    {
     AfxBeginThread(RUNTIME_CLASS(CMyThread));
    }

    class CMyThread : public CWinThread
    {
     DECLARE_DYNCREATE(CMyThread)
    protected:
     CMyThread();         
     public:
     virtual BOOL InitInstance();
     virtual int ExitInstance();
    protected:
     virtual ~CMyThread();
     DECLARE_MESSAGE_MAP()
    };

    BOOL CMyThread::InitInstance()
    {
     CMyDlg dlg;
     m_pMainWnd=&dlg;
     dlg.DoModal();
     
     return TRUE;
    }

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  • 原文地址:https://www.cnblogs.com/boobuy/p/2823184.html
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