Get sales totals amount by using x++ code

 Get sales totals amount by  using x++ code.

    //Total Discount from Sales Totals form
    SalesTable      salesTable      = SalesTable::find('sales order number');
    SalesTotals     salesTotals     = SalesTotals::construct(salesTable, salesUpdate::All);
    container       displayFields;
    DiscAmount      totalDisc;
    RealBase        subTotal;
    AmountCur       invoiceAmount;
    AmountMST       salesTax;
    AmountMST       totalCharges;

    displayFields = SalesTotals::displayFieldsServer(salesTable, 
                                                      SalesUpdate::All, 
                                                      salesTotals.CurrencyCode());
    //Total Discount
    totalDisc = conpeek(displayFields, TradeTotals::posEndDisc());
    
    info(Strfmt("Total discount %1", totalDisc));

    //Subtotal Amount
    subTotal=conpeek(displayFields, TradeTotals::posBalance());
    
    info(Strfmt("Subtotal Amount %1", subTotal));

    //Invoice Amount
    invoiceAmount =conpeek(displayFields, TradeTotals::posTotalAmount());
    
    info(Strfmt("Invoice Amount %1", invoiceAmount));
   //sales Tax
   salesTax = conpeek(displayFields, TradeTotals::posTaxTotal());
    
   info(Strfmt("sales Tax %1", salesTax));
 //Total Charges
  totalCharges = conpeek(displayFields, TradeTotals::posMarkup());
    
  info(Strfmt("Total Charges %1", totalCharges));

Keep Daxing!!