Nguyen Van Luong / Publications

EAs cannot backtest when using the functions SymbolInfoInteger() or SymbolInfoString()?

I am using version 5.00 build 6230. I am writing an EA. If I use functions like SymbolInfoInteger () or SymbolInfoString (), it becomes impossible to perform a backtest. for (int i = 0; i < SymbolsTotal(false); i++) { string Symb = SymbolName(i, false); printf ( SymbolInfoInteger (Symb

Error 5126 (ERR_DATABASE_NO_MORE_DATA) when trying to read data from a table.

I have a table like this: int Read_LastTrend( string UsedSymbol, string sCol) { int Ret = 0 ; ResetLastError (); //Create or open the database in the common terminal folder string filename = Filename(SCANNER_NAME, true ); int db = DbOpen(filename, __FUNCTION__ ); if (db ==

Please give me the download link for the portable of version 5 build 5770.

I want to downgrade version 5 build 5770. Please send to me the portable of version 5 build 5770. Thank you so much

The trading was done entirely using an EA, so why does the report show "Manual Trading"?

I used the EA on the new account and did not manually intervene in any trades. But why does the report have "27 Manual Trading "? EAs utilize instant orders, limit orders, Stop-loss, Take-profit and order closure when certain criteria are met

Why do these two functions different results?

Why do these two functions different results? I've always used method 1, but I found the results unsatisfactory, so I tried method 2 and it gave me the desired results. Method 1: bool Save_History_StrongConsensus(const char s) { bool Ret = false; Ret = Ret || Save_History_StrongConsensus(s

Unable to display special characters using ObjectSetString() in version 5488

I use the command below to display some special characters. With version 5430, it displays correctly, but when updating to version 5488, it doesn't display as expected. My EA, when compiled with version 5430, had a size of 1.832KB, but when recompiled with version 5488, it only has a size of

Why does the result depend on the condition even though the variable does not change?

Sometimes I can't understand why it is wrong like the example below: if (bb ) printf ( "@X " + BestEntry + " " + P261_UpDn[tm][SignalIdx].Entry); if (bEntry) printf ( "@Y " + BestEntry + " " + P261_UpDn[tm][SignalIdx].Entry); Why does the result depend on the condition even though the variable

the sort by percent change in Toolbox is not correct

I'm using MT5 version 5.00 build 4410. In Toolbox dialog the sort by percent change is not correct

How to free up memory after the service finishes executing the task?

I created a service to run every 4 hours to analyze 35 currency pairs for all time frames from M30~ MN. After the analysis is complete, the service still takes up 9.5MB of RAM and slows down the computer. I had to Stop and then click Start again to free up the memory to 1.5MB as before running the

How to free up memory occupied by a service?