tao zemin.
tao zemin.
simple, easygoing, and constructive.
tao zemin.
Added topic BarsCalculated() return with error code 4806.
I use the indicator attached to show a H4 moving average in H1 Chart.[by setting the period parameter to H4 in a H1 chart.] But nothing is shown in the chart.  The function call BarsCalculated() returned with error code 4806. What is wrong with
tao zemin.
Added topic how can I get the standard deviation of volume with the iStdDev()function ?
I am a beginner in Mql5 programming. Iwant to know how to get the standard deviation of volume with the iStdDev()function. thanks for your time and efforts.regards
tao zemin.
Added topic how to programmatically arrange windows as non-overlapping tiles
Dear all,    May i know  how to programmatically arrange windows as non-overlapping tiles? Since MT5 provide a toolbar(by pressing ALT+R) for or this. I searched the MT5 manual but cannnot find the API.  Many thanks for your
tao zemin.
Added topic How to save and load the control states of a dialog with IniFileSave() and IniFileLoad()
The attached is a simplified EA to find the correct way in using IniFileSave() and IniFileLoad() to save and load the control states of a dialog to and from a file.  After the EA is started. Firstly, I save the origial state of the Edit object
tao zemin.
Added topic How to "delete indicators window" without closing the chart?
Dear all, After I inserted the Panel Indicator(created after compiling Indicators/myindicators/mypanel/PanelIndicator.mq5) into the chart, I found that each time I click the context sensitive menu "delete the indicators window" of the indicator so as
tao zemin.
Added topic How to create a ComboBox object in an indicator subwindow?
Dear all,   I created a  ComboBox object in an indicator subwindow(by the code attached), But when I click the drop-down arrow next to the control , nothing was pop out. What is wrong with my code? Many thanks for your time and efforts
tao zemin.
Added topic How can the prices series and indicator values contained in the CSignalXXXX Class generated by the MQL5 Wizard be successfully accessed?
Dear All,   Let me illustrate my problem in MACD.   After I used MQL5 wizard to create a very simple EA based on the signals of CSignalMACD indicator. I made 2 changes to it: 1. In SignalMACD.mqh, add a member function PrintDBgInfo() to
tao zemin.
Added topic How can I run the Controls EA correctly?
Dear all,   I compiled the MQL5\Experts\Examples\Controls\Controls.mq5 to run it. But only a very small window appeared, as shown in the "Controls" area in the attached image . I check the out in the "export" tab, but no output there either
tao zemin.
Added topic The sequence of calling ArraySetAsSeries() and CopyBuffer()
Dear all, I am puzzled by the sdequence of calling the two functions: ArraySetAsSeries() and CopyBuffer(). There are 3 articles or (documents?) that give examples on using the 2 function. 1. https://www.mql5.com/en/articles/130 This article showed
tao zemin.
Added topic SymbolSelect(symName,false)always failed with error 4305,what is wrong?
Dear all,   I use the following simple script to remove the currency pair with bid price<1.0 from the market watch.I notieced that during debug, Each time SymbolSelect(SymbolName, false) is called, it fails with error #4305. What's wrong with
tao zemin.
Added topic During optimization, How to set the input parameters(the start, step, and stop )values for an external parameter of ENUMERATION data type?
Dear all, During optimization, How to set the input parameters (the start, step, and stop )values for an ENUMERATION data type? Many thanks for your time and consideration
tao zemin.
Added topic Is it possible to download more history data from a certain server?
Dear all, Is it possible to download more history data from a certain server? I use the script in https://www.mql5.com/en/code/302 , and found that it seems the history data of the symbols i checked started from 2012.10.3. Where can we get more data
tao zemin.
Added topic how to Manipulate a particular order instead of the whole position?
Dear all, Think I have bought 3 lots of contacts by sending several OP_Buy commands at different prices. Can I use the OrderSend() or CTrade class to close or modify particular one of these orders as I do with the orignal OrderClose() OrderModify()
tao zemin.
Added topic Is there any convenient way of switching between all the symbols listed in market watch ?
So many symbols are listed in market watch. Is there any convenient way to navigate through each symbol and analyze them? thank you
tao zemin.
Added topic in order not to trash the standard library and wizard can find it,Where should the signal file be created?
On this problem, https://www.mql5.com/en/articles/226offered offered two instructions: 1) It should be noted that in order for the file to be then "detected" by MQL5 Wizard as a signal generator, it should be created in the folder
tao zemin.
Added topic would you please recommend me a series of articles on optimization?
Dear all, Thanks to your unselfish and effective help, the developement of my first EA is coming to the optimization phase. Would you please recommend me a series of articles on optimization, so that I can read them one by one and prepared myself for
tao zemin.
Added topic Invisible vHistory while applying VisualTestingTools
Dear all, In order to see the trade history during backtest, I followed the instructions in https://www.mql5.com/en/articles/1452 (the EA is downloaded from the attached file in this article, too). But I cannot see any history trades output during
tao zemin.
Added topic where to get the document on the outputs in the chart during strategy backtest?
Dear all, May I know where to get the document on the outputs in the chart during strategy backtest? for example, I want to know the meaning of the graphical objects in the attached image ... Many thanks for your time and consideration, and Merry
tao zemin.
Added topic how to get the time of market close
Dear all, May I know how to get the time of market close so as to close all the orders in advance ? My EA must avoid the opening gap after the market close. Many thanks for your time and consideration. taozemin
tao zemin.
Added topic OrderSend error 129
void OpenOrdersToTP() {    //to place orders so as to TP in choppy markets.   RefreshRates();    double point=MarketInfo( Symbol (),MODE_POINT);    Print ( "in OpenOrdersToTP():Bid=" ,DoubleToStr(Bid, Digits )
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