C / C++ / MFC

struct MyData { int nVal, CString str };
for (int i = 0; i < nItems; i++) {
  MyData *pData = new MyData;
  pData->nVal = nIntVal;
  pData->str = "Hello";
  int nRow = list.InsertItem(i, pData->str);
  list.SetItemData((DWORD) pData); // will be used in sorting function
}

#define SORT_INT_ASC 1
int CALLBACK CompareFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
{
  MyData *pData1 = (MyData*) lParam1;
  MyData *pData2 = (MyData*) lParam2;
  if (lParamSort == SORT_INT_ASC)
  {
    // Here we do sorting on the integer value
    if (pData1->nVal < pData2->nVal) return -1;
    if (pData1->nVal > pData2->nVal) return 1;
    return 0;
  }
}
// do the sorting
list.SortItems(CompareFunc, SORT_INT_ASC);