CListBox::SetAnchorIndex
Sets the anchor in a multiple-selection list box to begin an extended selection.
void SetAnchorIndex(
int nIndex
);
Parameters
- nIndex
Specifies the zero-based index of the list-box item that will be the anchor.
Remarks
In a multiple-selection list box, the anchor item is the first or last item in a block of contiguous selected items.
Example
void CMyODListBox::OnLButtonDown(UINT nFlags, CPoint point)
{
BOOL bOutside = TRUE;
UINT uItem = ItemFromPoint(point, bOutside);
if (!bOutside)
{
// Set the anchor to be the middle item.
SetAnchorIndex(uItem);
ASSERT((UINT)GetAnchorIndex() == uItem);
}
CListBox::OnLButtonDown(nFlags, point);
}
Requirements
Header: afxwin.h