How to set tooltip at runtime in MFC Treeview ?

Question

hi,

How to set tooltip at runtime in MFC Treeview ?

I am creating treeview like this :

                        m_pTreeview->Create(WS_CHILD | WS_VISIBLE | WS_TABSTOP |                     
            TVS_SINGLEEXPAND,CRect(38, 82, 220 ,250), this, IDC_NDS_TREEVIEW);

Any help is appreciated..

Answer 1

If you're referring to the tooltips for items in the tree control, you need to add TVS_INFOTIP to the window styles in Create (see list of tree-view styles). You'll also have to handle the TVN_GETINFOTIP notification message to provide the tooltip text depending on the item.

Answer 2

Add TVS_INFOTIP style to your tree-view. You also need to handle the TVN_GETINFOTIP notification using an ON_NOTIFY handler as described here. In your handler member function cast the NMHDR * parameter to NMTVGETINFOTOOLTIP * and set the tooltip string in this structure.

Answer 3

Use TVS_INFOTIP style to tree-view, and handle the TVN_GETINFOTIP notification using an ON_NOTIFY handler. Typecast the NMHDR ptr to NMTVGETINFOTOOLTIP ptr as (NMTVGETINFOTOOLTIP *)pnmhdr and then set the tooltip string in this structure.

Answer 4

Here some code : -- In .H file

afx_msg void OnMyTreeGetInfoTip NMHDR pNMHDR LRESULT pResult

In BEGIN MESSAGE MAP block add - ON_NOTIFY_REFLECT (TVN_GETINFOTIP, OnMyTreeGetInfoTip)

And use handler

void CMyTreeView::OnMyTreeGetInfoTip(NMHDR *pNMHDR, LRESULT *pResult)

{ LPNMTVGETINFOTIP pGetInfoTip = (LPNMTVGETINFOTIP)pNMHDR

CString strItemTxt = m_TreeCtrl.GetItemText(pGetInfoTip->hItem);

strcpy(pGetInfoTip->pszText, strItemTxt);

*pResult = 0;

}