| //+------------------------------------------------------------------+
|
| //| MoneyFixedMargin.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 margin |
|
| //| Type=Money |
|
| //| Name=FixMargin |
|
| //| Class=CMoneyFixedMargin |
|
| //| Page= |
|
| //| Parameter=Percent,double,10.0,Percentage of margin |
|
| //+------------------------------------------------------------------+
|
| // wizard description end
|
| //+------------------------------------------------------------------+
|
| //| Class CMoneyFixedMargin. |
|
| //| Purpose: Class of money management with fixed percent margin. |
|
| //| Derives from class CExpertMoney. |
|
| //+------------------------------------------------------------------+
|
| class CMoneyFixedMargin : public CExpertMoney
|
| {
|
| public:
|
| CMoneyFixedMargin(void);
|
| ~CMoneyFixedMargin(void);
|
| //---
|
| virtual double CheckOpenLong(double price,double sl);
|
| virtual double CheckOpenShort(double price,double sl);
|
| };
|
| //+------------------------------------------------------------------+
|
| //| Constructor |
|
| //+------------------------------------------------------------------+
|
| void CMoneyFixedMargin::CMoneyFixedMargin(void)
|
| {
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Destructor |
|
| //+------------------------------------------------------------------+
|
| void CMoneyFixedMargin::~CMoneyFixedMargin(void)
|
| {
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Getting lot size for open long position. |
|
| //+------------------------------------------------------------------+
|
| double CMoneyFixedMargin::CheckOpenLong(double price,double sl)
|
| {
|
| if(m_symbol==NULL)
|
| return(0.0);
|
| //--- select lot size
|
| double lot;
|
| if(price==0.0)
|
| lot=m_account.MaxLotCheck(m_symbol.Name(),ORDER_TYPE_BUY,m_symbol.Ask(),m_percent);
|
| else
|
| lot=m_account.MaxLotCheck(m_symbol.Name(),ORDER_TYPE_BUY,price,m_percent);
|
| //--- return trading volume
|
| return(lot);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Getting lot size for open short position. |
|
| //+------------------------------------------------------------------+
|
| double CMoneyFixedMargin::CheckOpenShort(double price,double sl)
|
| {
|
| if(m_symbol==NULL)
|
| return(0.0);
|
| //--- select lot size
|
| double lot;
|
| if(price==0.0)
|
| lot=m_account.MaxLotCheck(m_symbol.Name(),ORDER_TYPE_SELL,m_symbol.Bid(),m_percent);
|
| else
|
| lot=m_account.MaxLotCheck(m_symbol.Name(),ORDER_TYPE_SELL,price,m_percent);
|
| //--- return trading volume
|
| return(lot);
|
| }
|
| //+------------------------------------------------------------------+
|
