C#

private static BuyWindow f;
internal static void testwindow()
        {
            if (Tapp == null) { Tapp = new TaiPanRTLib.TaiPanRealtime(); }
                         
            f.build_chart();
          
            f.Show();           

            DataStream TPStream;
            TPStream = (DataStream)Program.Tapp.DataStream;
            TPStream.Add(17956195, 1);
            TPStream.Brief += new _IDataStreamEvents_BriefEventHandler(TPStream_BriefBuyWindow);
            TPStream.Geld += new _IDataStreamEvents_GeldEventHandler(TPStream_GeldBuyWindow);
           
        }
        static void TPStream_GeldBuyWindow(int SymbolNr, float Kurs, float Volume, DateTime Zeit)
        {
            f.update_bid(Zeit, Kurs, false);          
        }
        static void TPStream_BriefBuyWindow(int SymbolNr, float GeldKurs, float Volume, DateTime Zeit_kurs)
        {
            f.update_ask(Zeit_kurs, GeldKurs, false);                   
        }

public void update_bid(DateTime bid_time, float price, bool build)
        {            
                if (this.InvokeRequired)
                {
                    this.Invoke(delegateUpdateBid, new object[] { bid_time, price, build });
                }
                else
                {                  
                    bidseries1.Points.AddXY(bid_time, price);                   
                    if (!build)
                    {
                        current_bid = price;
                        update_label(price.ToString(), "label9");                        
                    }
                }
            }
         }