C / C++ / MFC

<br />
- Owner of the message(thread ID)<br />
- Command for the database(something like SQL or maybe a selfmade kind)<br />
- Pointer to the Recordset where the thread retrieves all information from the database<br />

// Sort the item in reverse alphabetical order.
static int CALLBACK 
MyCompareProc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
{
   // lParamSort contains a pointer to the list view control.
   // The lParam of an item is just its index.
   CListCtrl* pListCtrl = (CListCtrl*) lParamSort;
   CString    strItem1 = pListCtrl->GetItemText(lParam1, 0);
   CString    strItem2 = pListCtrl->GetItemText(lParam2, 0);

   return strcmp(strItem2, strItem1);
}

void snip_CListCtrl_SortItems()
{
   // The pointer to my list view control.
   extern CListCtrl* pmyListCtrl;

   // Sort the list view items using my callback procedure.
   pmyListCtrl->SortItems(<code>MyCompareProc</code>, (LPARAM) pmyListCtrl);
}

pmyListCtrl->SortItems(<code>MyCompareProc</code>, (LPARAM) pmyListCtrl);