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CR := TCalloutRectangle.Create(VSB);
CR.Tag := iTagID;
function DeleteCallout(sb: TVertScrollBox; idx: Integer): Boolean;
Result := False;
//go throug all childs
for i := 0 to sb.Content.ChildrenCount-1 do
//is specific object class
if sb.Content.Children.Items[i] is TCalloutRectangle then
//find it by Tag
if (sb.Content.Children.Items[i] as TCalloutRectangle).Tag = idx then
obj := (sb.Content.Children.Items[i] as TCalloutRectangle);
sb.Content.RemoveObject(obj); //delete from parent
Result := True;
procedure TForm1.Button6Click(Sender: TObject);
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for i := count-1 downto 0 do
// delete stuff
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