这段代码是什么意思。
void CSortListCtrl::OnHeaderClicked(NMHDR* pNMHDR, LRESULT* pResult)
{
HD_NOTIFY *phdNotify = (HD_NOTIFY *)pNMHDR;
if (phdNotify->iButton == 0)
{
m_bSortAscending = (phdNotify->iItem == m_nSortedColumn) ?
!m_bSortAscending : TRUE;
m_nSortedColumn = phdNotify->iItem;
if(m_nSortedColumn==2)
m_nCompareAs=ELCT_INTEGER;
else
m_nCompareAs=ELCT_STRING_NOCASE;
Sort();
}
*pResult = 0;
}