问当orderSend()

EN

     Ticket = OrderSend(_Symbol,OP_SELL, Lot,Bid,2, // '2' is slippage alloable limit.
     SL,TP,comment,Magic);

     if (Ticket > 0){
       // if slippage is under 2 it works.
       // want to check the real slippage
     }
     else {
        int err = GetLastError();
        if(err == ERR_NO_ERROR || 
           err == ERR_COMMON_ERROR ||
           err == ERR_SERVER_BUSY ||
           err == ERR_NO_CONNECTION ||
           err == ERR_TRADE_TIMEOUT ||
           err == ERR_INVALID_PRICE ||
           err == ERR_PRICE_CHANGED ||
           err == ERR_OFF_QUOTES ||
           err == ERR_BROKER_BUSY ||
           err == ERR_REQUOTE ||
           err == ERR_TRADE_CONTEXT_BUSY){
             //want to check the slippage here!!!
        }

     }