| //+------------------------------------------------------------------+
|
| //| MoneyFixedLot.mqh |
|
| //| Copyright 2000-2025, MetaQuotes Ltd. |
|
| //| https://www.mql5.com |
|
| //+------------------------------------------------------------------+
|
| #include <Expert\ExpertMoney.mqh>
|
| // wizard description start
|
| //+------------------------------------------------------------------+
|
| //| Description of the class |
|
| //| Title=Trading with fixed trade volume |
|
| //| Type=Money |
|
| //| Name=FixLot |
|
| //| Class=CMoneyFixedLot |
|
| //| Page= |
|
| //| Parameter=Percent,double,10.0,Percent |
|
| //| Parameter=Lots,double,0.1,Fixed volume |
|
| //+------------------------------------------------------------------+
|
| // wizard description end
|
| //+------------------------------------------------------------------+
|
| //| Class CMoneyFixedLot. |
|
| //| Purpose: Class of money management with fixed lot. |
|
| //| Derives from class CExpertMoney. |
|
| //+------------------------------------------------------------------+
|
| class CMoneyFixedLot : public CExpertMoney
|
| {
|
| protected:
|
| //--- input parameters
|
| double m_lots;
|
|
|
| public:
|
| CMoneyFixedLot(void);
|
| ~CMoneyFixedLot(void);
|
| //---
|
| void Lots(double lots) { m_lots=lots; }
|
| virtual bool ValidationSettings(void);
|
| //---
|
| virtual double CheckOpenLong(double price,double sl) { return(m_lots); }
|
| virtual double CheckOpenShort(double price,double sl) { return(m_lots); }
|
| };
|
| //+------------------------------------------------------------------+
|
| //| Constructor |
|
| //+------------------------------------------------------------------+
|
| void CMoneyFixedLot::CMoneyFixedLot(void) : m_lots(0.1)
|
| {
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Destructor |
|
| //+------------------------------------------------------------------+
|
| void CMoneyFixedLot::~CMoneyFixedLot(void)
|
| {
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Validation settings protected data. |
|
| //+------------------------------------------------------------------+
|
| bool CMoneyFixedLot::ValidationSettings(void)
|
| {
|
| if(!CExpertMoney::ValidationSettings())
|
| return(false);
|
| //--- initial data checks
|
| if(m_lots<m_symbol.LotsMin() || m_lots>m_symbol.LotsMax())
|
| {
|
| printf(__FUNCTION__+": lots amount must be in the range from %f to %f",m_symbol.LotsMin(),m_symbol.LotsMax());
|
| return(false);
|
| }
|
| if(MathAbs(m_lots/m_symbol.LotsStep()-MathRound(m_lots/m_symbol.LotsStep()))>1.0E-10)
|
| {
|
| printf(__FUNCTION__+": lots amount is not corresponding with lot step %f",m_symbol.LotsStep());
|
| return(false);
|
| }
|
| //--- ok
|
| return(true);
|
| }
|
| //+------------------------------------------------------------------+
|
