forked from airat77786/MQL5Book
28 lines
1.2 KiB
MQL5
28 lines
1.2 KiB
MQL5
 | //+------------------------------------------------------------------+
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//| SymbolList.mq5 |
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//| Copyright 2022, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//| Write a list of symbols to the log. |
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//+------------------------------------------------------------------+
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#property script_show_inputs
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#include "..\..\Include\PRTF.mqh"
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input bool MarketWatchOnly = true;
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//+------------------------------------------------------------------+
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//| Script program start function |
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//+------------------------------------------------------------------+
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void OnStart()
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{
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const int n = SymbolsTotal(MarketWatchOnly);
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// list all symbols in Market Watch or available in general
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Print("Total symbol count: ", n);
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for(int i = 0; i < n; ++i)
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{
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PrintFormat("%4d %s", i, SymbolName(i, MarketWatchOnly));
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}
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// now incorrect (out of bound) request made intentionally to demo the error
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PRTF(SymbolName(n, MarketWatchOnly)); // MARKET_UNKNOWN_SYMBOL(4301)
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}
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//+------------------------------------------------------------------+
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