public void ShutDown()
 {
     // Release the point bitmap object.
     PointBitmap?.Shutdown();
     PointBitmap = null;
     // Release the mini-map bitmap object.
     MiniMapBitmap?.Shutdown();
     MiniMapBitmap = null;
 }
 public void ShutDown()
 {
     // Release the point bitmap object.
     Point?.Shutdown();
     Point = null;
     // Release the border bitmap object.
     Border?.Shutdown();
     Border = null;
     // Release the mini-map bitmap object.
     MiniMapBitmap?.Shutdown();
     MiniMapBitmap = null;
 }