Win32 SDK下删除ListView控件的所有行，所有列

利用Win32 SDK通过发送消息实现删除ListView控件的所有行，与所有列：

int nCols;
HWND hWndListView, hWndListViewHeader;
//删除所有行
SendMessage(hWndListView, LVM_DELETEALLITEMS, 0, 0);
//得到ListView的Header窗体
hWndListViewHeader = (HWND)SendMessage(hWndListView, LVM_GETHEADER, 0, 0);
//得到列的数目
nCols = SendMessage(hWndListViewHeader, HDM_GETITEMCOUNT, 0, 0);
   
nCols--;
//删除所有列
for(; nCols >= 0; nCols--)
        SendMessage(hWndListView, LVM_DELETECOLUMN, nCols, 0);