EasyMap VCL
TEasyMap.OnDelSelection
property OnDelSelection: TDelSelectionEvent;
Description
Event occurs when object deleted from list of selected objects.

procedure TForm1.EasyMap1DelSelection(Sender: TEasyMap;
  MapObject: TCustomMapObject);
var
 idx: Integer;
begin
 idx := ListBox_Selection.Items.IndexOfObject(mapObject);
 if idx <> -1 then ListBox_Selection.Items.Delete(idx);
end;