C.Young @ XiCabin: Programming tips

1. 向文档视图结构中的DialogBar中的Button添加ICON
        int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
        {
                static_cast<CButton *>( m_wndDlgBar.

GetDlgItem( IDC_BUTTON_LEND ) )->

SetIcon( AfxGetApp()->LoadIcon( IDR_MAINFRAME ) );
        }
   似乎要添加了时间处理函数后才看得到？
   另：不要为DialogBar创建Dialog类，处理Button的消息可在其他类中处理

2. DECLARE_MESSAGE_MAP后面是protected!

3. javascript刷新父窗口
   <body onUnload="javascript: window.opener.location.reload();"

>

4. STL: 用sstream的ostringstream实现format

5. Font:
   m_font.CreateFont(
                nHeight,                   // nHeight
                0,                         // nWidth
                0,                         // nEscapement
                0,                         // nOrientation
                FW_NORMAL,                 // nWeight
                FALSE,                     // bItalic
                FALSE,                     // bUnderline
                0,                         // cStrikeOut
                ANSI_CHARSET,              // nCharSet
                OUT_DEFAULT_PRECIS,        // nOutPrecision
                CLIP_DEFAULT_PRECIS,       // nClipPrecision
                DEFAULT_QUALITY,           // nQuality
                DEFAULT_PITCH  FF_SWISS,  // nPitchAndFamily
                "Arial");

6. 获得CListCtrl列的个数
   GetHeaderCtrl()->GetItemCount();

7. 运行时类型判断
   if ( pMapStr->IsKindOf( RUNTIME_CLASS(CStringArray)) )
        {
                AfxMessageBox( _T("!") );
        }

8. 向资源里添加GIF,
   IDR_MYPIC               GIF  DISCARDABLE     "res\\face.gif"
9. ScreenToClient & ClientToScreen
        RECT rectLeft;
        m_pWndLeft->GetWindowRect( &rectLeft );
        ScreenToClient( &rectLeft );
        rectLeft.top++;
        ClientToScreen( &rectLeft );
        m_pWndLeft->MoveWindow( &rectLeft );
10.CFileFind, 不理解
   CFileFind finder;

   // build a string with wildcards
   CString strWildcard(pstr);
   strWildcard += _T("\\*.*");

   // start working for files
   BOOL bWorking = finder.FindFile(strWildcard);

   while (bWorking)
   {
      bWorking = finder.FindNextFile();

      // skip . and .. files; otherwise, we'd
      // recur infinitely!

      if (finder.IsDots())
         continue;

      // if it's a directory, recursively search it

      if (finder.IsDirectory())
      {
         CString str = finder.GetFilePath();
         cout << (LPCTSTR) str << endl;
         Recurse(str);
      }
   }

   finder.Close();
11. <input name="submit" type="submit" value="OK"

onClick="javascript: return confirm('hello');">

12. CListBox 选中列
    SetCurSel();// 单选择
    SetSel();// 多选择时有效

13. CRichEditView 只粘贴文本
    HRESULT CMySQLEditorView::QueryAcceptData(
            LPDATAOBJECT lpdataobj,
            CLIPFORMAT* lpcfFormat,
            DWORD dwReco,
            BOOL bReally,
            HGLOBAL hMetaFile)
    {// paste text only
        if (bReally && *lpcfFormat == 0 && (m_nPasteType == 0))
        {
                COleDataObject dataobj;
                dataobj.Attach(lpdataobj, FALSE);
                if (dataobj.IsDataAvailable(CF_TEXT)) 
                {// richedit do as it wants
                        return S_OK;
                }
        }
        return S_FALSE;
    }

14. 调整Combo Box高度
    把鼠标放在下拉按钮上，当鼠标变成上下箭头的时候点一下

15. CTreeCtrl : 设置粗体
    tree.SetItemState( hRoot, TVIS_BOLD, TVIS_BOLD );// set bold
    tree.SetItemState( hRoot, ~TVIS_BOLD, TVIS_BOLD );// reset bold

16. CTreeCtrl : 右键菜单，设置选择项
    void CLeftView::OnNMRclick(NMHDR *pNMHDR, LRESULT *pResult)
    {
        *pResult = 0;
        UINT uFlags;
        CPoint pt;
        CTreeCtrl & tree = GetTreeCtrl();
        GetCursorPos( &pt );// get mouse position
        tree.ScreenToClient( &pt );// convert to client position
        HTREEITEM hItem = tree.HitTest( pt, &uFlags );

// hit test, if an item is selected
        if( (hItem != NULL) && (TVHT_ONITEM & uFlags) )
                tree.SelectItem( hItem );// if true, select item
        tree.ClientToScreen( &pt );// convert to windows position
        m_menu.GetSubMenu( 1 )->TrackPopupMenu( TPM_LEFTALIGN

 TPM_LEFTBUTTON, pt.x, pt.y,

 this );// display menu
    }

17. TPM_NONOFIFY  TPM_RETURNCMD
    UINT nSelected = menu.TrackPopupMenu( TPM_LEFTALIGN

 TPM_LEFTBUTTON  TPM_NONOTIFY

TPM_RETURNCMD, pt.x, pt.y, this );
    返回选择项

18. CView::OnDraw是纯虚函数!

19. CTreeCtrl 删除所有子节点
    tree.Expand( hRoot, TVE_COLLAPSE  TVE_COLLAPSERESET );

C.Young @ XiCabin

Saturday, August 12, 2006

Programming tips

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