CSymbolInfo Refresh()

[Mark Lewis]

We have a plethora of options to Refresh() in the standard library. I'm already calling the CSymbolInfo library in an EA, so would the following achieve the same end result as right clicking the chart that the EA is applied to and hitting the refresh button?

#include <Trade\SymbolInfo.mqh>

CSymbolInfo     SymbolInfo;

SymbolInfo.Name(_Symbol);

SymbolInfo.Refresh();

:-) thanks

[Anthony Garot]

You can easily see what bool CSymbolInfo::Refresh(void) does by looking in:

./Include/Trade/SymbolInfo.mqh

[Mark Lewis]

Anthony Garot:

You can easily see what bool CSymbolInfo::Refresh(void) does by looking in:

./Include/Trade/SymbolInfo.mqh

//+------------------------------------------------------------------+
//| Refresh cached data                                              |
//+------------------------------------------------------------------+
bool CSymbolInfo::Refresh(void)
  {
   long tmp=0;
//---
   if(!SymbolInfoDouble(m_name,SYMBOL_POINT,m_point))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_TRADE_TICK_VALUE,m_tick_value))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_TRADE_TICK_VALUE_PROFIT,m_tick_value_profit))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_TRADE_TICK_VALUE_LOSS,m_tick_value_loss))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_TRADE_TICK_SIZE,m_tick_size))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_TRADE_CONTRACT_SIZE,m_contract_size))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_VOLUME_MIN,m_lots_min))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_VOLUME_MAX,m_lots_max))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_VOLUME_STEP,m_lots_step))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_VOLUME_LIMIT,m_lots_limit))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_SWAP_LONG,m_swap_long))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_SWAP_SHORT,m_swap_short))
      return(false);
   if(!SymbolInfoInteger(m_name,SYMBOL_DIGITS,tmp))
      return(false);
   m_digits=(int)tmp;
   if(!SymbolInfoInteger(m_name,SYMBOL_ORDER_MODE,tmp))
      return(false);
   m_order_mode=(int)tmp;
   if(!SymbolInfoInteger(m_name,SYMBOL_TRADE_EXEMODE,tmp))
      return(false);
   m_trade_execution=(ENUM_SYMBOL_TRADE_EXECUTION)tmp;
   if(!SymbolInfoInteger(m_name,SYMBOL_TRADE_CALC_MODE,tmp))
      return(false);
   m_trade_calcmode=(ENUM_SYMBOL_CALC_MODE)tmp;
   if(!SymbolInfoInteger(m_name,SYMBOL_TRADE_MODE,tmp))
      return(false);
   m_trade_mode=(ENUM_SYMBOL_TRADE_MODE)tmp;
   if(!SymbolInfoInteger(m_name,SYMBOL_SWAP_MODE,tmp))
      return(false);
   m_swap_mode=(ENUM_SYMBOL_SWAP_MODE)tmp;
   if(!SymbolInfoInteger(m_name,SYMBOL_SWAP_ROLLOVER3DAYS,tmp))
      return(false);
   m_swap3=(ENUM_DAY_OF_WEEK)tmp;
   if(!SymbolInfoDouble(m_name,SYMBOL_MARGIN_INITIAL,m_margin_initial))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_MARGIN_MAINTENANCE,m_margin_maintenance))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_MARGIN_LONG,m_margin_long))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_MARGIN_SHORT,m_margin_short))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_MARGIN_LIMIT,m_margin_limit))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_MARGIN_STOP,m_margin_stop))
      return(false);
   if(!SymbolInfoDouble(m_name,SYMBOL_MARGIN_STOPLIMIT,m_margin_stoplimit))
      return(false);
   if(!SymbolInfoInteger(m_name,SYMBOL_EXPIRATION_MODE,tmp))
      return(false);
   m_trade_time_flags=(int)tmp;
   if(!SymbolInfoInteger(m_name,SYMBOL_FILLING_MODE,tmp))
      return(false);
   m_trade_fill_flags=(int)tmp;
//--- succeed
   return(true);
  }

true. here it is.... but is calling that the same as manually refreshing from the chart?

[Anthony Garot]

Mark Lewis:

true. here it is.... but is calling that the same as manually refreshing from the chart?

I thought manually refreshing a chart was the same as running ChartRedraw() in code, but I could be mistaken.