Determines which list view item, if any, is at a given position.
int SubItemHitTest( 
   LPLVHITTESTINFO pInfo  
);
Parameters
- pInfo
A pointer to the LVHITTESTINFO structure. 
Return Value
The one-based index of the item, or subitem, being tested (if any), or -1 otherwise.
Remarks
This member function implements the behavior of the Win32 macro, ListView_SubItemHitTest, as described in the Windows SDK.
Example
void CListCtrlDlg::OnDblClk(NMHDR* pNMHDR, LRESULT* pResult)
{
    UNREFERENCED_PARAMETER(pResult);
    LPNMITEMACTIVATE pia = (LPNMITEMACTIVATE)pNMHDR;
    LVHITTESTINFO lvhti;
    // Clear the subitem text the user clicked on.
    lvhti.pt = pia->ptAction;
    m_myListCtrl.SubItemHitTest(&lvhti);
    if (lvhti.flags & LVHT_ONITEMLABEL)
    {
        m_myListCtrl.SetItemText(lvhti.iItem, lvhti.iSubItem, NULL);
    }
}
Requirements
Header: afxcmn.h