void clear (int index, boolean all) {
public void clear (int index, boolean all) {
/*public*/ void clear (int index, boolean all) {	checkWidget ();	int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0);	if (hItem == 0) error (SWT.ERROR_INVALID_RANGE);	hItem = findItem (hItem, index);	if (hItem == 0) error (SWT.ERROR_INVALID_RANGE);	TVITEM tvItem = new TVITEM ();	tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM;	clear (hItem, tvItem);	if (all) {		hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hItem);		clearAll (hItem, tvItem, all);	}}