public unsafe int NearestIndex(Point pt)
{
var lvInsertMark = new LVINSERTMARK
{
cbSize = (uint)sizeof(LVINSERTMARK)
};
User32.SendMessageW(listView, (User32.WM)LVM.INSERTMARKHITTEST, (nint)(&pt), ref lvInsertMark);
return(lvInsertMark.iItem);
}
internal unsafe void UpdateListView()
{
Debug.Assert(listView.IsHandleCreated, "ApplySavedState Precondition: List-view handle must be created");
var lvInsertMark = new LVINSERTMARK
{
cbSize = (uint)sizeof(LVINSERTMARK),
dwFlags = appearsAfterItem ? LVIM.AFTER : LVIM.BEFORE,
iItem = index
};
User32.SendMessageW(listView, (User32.WM)LVM.SETINSERTMARK, 0, ref lvInsertMark);
if (!color.IsEmpty)
{
User32.SendMessageW(listView, (User32.WM)LVM.SETINSERTMARKCOLOR, 0, color.ToWin32());
}
}
