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ToolTips w/ TreeView...

Posted on 2000-05-02
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Last Modified: 2010-05-18
Dum qwestion but... Get tool tips to work with CTreeView within CMDIChildWnd...
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Question by:muffinthedog
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proskig earned 300 total points
ID: 2770105
From codeguru:
Changing the tool tip as the mouse pointer moves along different tree control items is fairly simple. The tree control can be on a dialog, property page or a form view. Assuming that you use a class derived from CFormView called CMyFormView, which has a tree control, the steps to follow are:

Declare a member variable for the tree control (IDC_TREE1), m_tree.
Decide on how the tip for each tree item will be stored. For instance, you could hold the tip in a map which you declare in the header file CMyFormView.h.

      CMap< HTREEITEM,HTREEITEM&,CString,CString& > tooltipMap;
Fill the map as you generate the items of the tree. For instance after every InsertItem:
      HTREEITEM hItem = m_tree.InsertItem(&tvItem); // tvItem is of type TV_INSERTSTRUCT
      tooltipMap[hItem] = " Tool Tip Text   ";   // Set the tool tip text of the item.
      
Declare an object of CToolTipCtrl in the header file CMyFormView .h
      CToolTipCtrl m_tooltip;
Create the tool tip control and initialize it in the OnInitialUpdate message handler (OnInitDialog for CDialog derived classes)
      m_tooltip.Create(this);
      m_tooltip.Activate(TRUE);
      m_tooltip.AddTool(GetDlgItem(IDC_TREE1), "Tree Tool Tip");
      
Override the PreTranslateMessage in the form view.
      BOOL CMyFormView::PreTranslateMessage(MSG* pMsg)
      {
            // TODO: Add your specialized code here and/or call the base class
            if(pMsg->message == WM_MOUSEMOVE && pMsg->hwnd == m_tree.m_hWnd)
            {
            CPoint point(LOWORD(pMsg->lParam),HIWORD(pMsg->lParam));
                  HTREEITEM hItem = m_tree.HitTest(point);
                  if(hItem != NULL)
                  {
                        CString text = tooltipMap[hItem];                        
                        m_tooltip.UpdateTipText(text,&m_tree);
                        m_tooltip.RelayEvent(pMsg);
                  }
                  
            }
      }
      
This changes the tool tip text as the mouse pointer moves along the different items in the tree control.
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by:muffinthedog
ID: 2770999
Worked with minor mod for CTreeView...
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