MQL4 and MetaTrader 4 - page 1509

I want to declare the following: double positiveInfinity = 1.7e308; double negitiveInfinity = -1.7e-308; double value = 1.1e-134; According to the documentation a double can ranges from -1.7 * e-308 to a positive 1.7 * e308 but when I try double value = 1.1e-134; // '1.1e' - invalid number...

Hi, I am new to MQL. I need to know if I can program to be alerted when the 1HR chart is along the Bollinger Band? Thanks, JForex.

I tried to write to some code that would find the most frequently occuring price over the last nMinutes, using OHLC as quotes.  I realize now however, that I am in way over my head.  Please help! int i;int PopLength = 100;double Pop;double PriceArray[PopLength][2];double Check; int start(){...

Does anyone have any experience with the EA F.R.E.D.. I am constantly getting the following message: Error Occured : invalid trade volume. I've experimented with the lot size anywhere from 0.01 to 0.1 to 5.0. Nothing seems to work.

Hi, I think, I just found a bug. To re-produce just install and insert as Custom-indicator, end and re-start MT4 - you'll find the window empty. Now just set faulty to false and feel better. I used this for my indicator in a separate_window...

Somehow I lost the tool bar at the bottom of the page that said "TRADES, EMAIL, ALERTS ETC." I can heat the tone when I get a message but cant view them. Im sure its something simple but cant seem to find it. Can anyone help?

greetings ! anyone here had perceived that offline charts from created symbols can't be tested on strategy tester ? there is any workaround ?

Hi, I'm new to MT4 and understand how to add an indicator to the chart but I want to add a moving average to the volume when I have it displayed in it's own box below the chart. I have it showing as a simple histogram. According to the help file one can add an indicator to another but it does not

Hello, I have created a custom indicator, but how do I reference this indicator in my EA?

I was arranging the Toolbox and the Navigator windows. I pulled the Navigator window way to the right and left my mouse. Now I am not able to bring the navigator window into the view. selected and deselected the navigator icon and I closed the editor and opened and still not able to. The navigator...

Hey everyone, I'm completely brand new to forex. As such, I have about a zillion questions so if there's a "pre-school" section of this forum, please point me to it and forgive the following basic questions. I'm a GUT trader. i.e. haven't a clue about charts and statistics. BUT, I've paper traded...

Hi All, I would like to ask someone to clarify me 3 basic things: when MT4 executes a command: OrderSend() - is it waiting to get a confirmation from the market that the order has been confirmed / refused / requoted / etc., or it's going immedialtely to next command ? how exactly should I deal with...

Wer Hilfe bei Programmierung eines EAs benötigt und dies in Deutsch. Findet diese unter http://www.meta-trader.de

Please am a new member in the forum, please I need someone to explain to me how to go about learning about expert advisor. I realy want to learn how to use it and others that geos with it, I will appreciate the effort of the forum to help me through, peace to all of you.

Hello Guys, Im new to metatrader but would really like to dive into this MQL4 code as my backgrounds in IT but not development/coding. I was wondering if someone could help me with an example.... I'm trying to take the VALUE of ATR, and put that as the period in RSI... I know this doesn't make a...

Hi, I am slowly teaching myself how to code EAs. I have an EA that I am currently working on that has good potential but I do not know how to code my target price. I want the EA to take partial profits at fib expansion levels of the previous day when using any timeframe shorter than 1 hour and fib...

New article To Sleep, or Not to Sleep? is published: An alternative use of the Sleep() function in the realization of pausesbetween EA's actions is proposed. The approach under considerationallows a smart use of machine time. Author: Sergey Gridnev

I got an EA from a friend. Last week, I could run the tester, and there was result. But today, it yields no result anymore. What can be the possible reasons? Someone help me!!

Hi everybody please help!! In Multiply Order, How to make the last stoploss be The New Stoploss for All, Close All ???

Hi there, I am new to metatrader and I have created my first Expert Advisor to alert me when a new bar is created. I list my code below as it doesn't appear to be alerting so i must have something wrong. Can any one help? Also once I have attach the cod eto the chart how do I unattach it? Hope...

Do I need to keep the names of the buffers originally named by MT4: ExtMapBuffer5[] or can I replace the names e.g. according to the color they are paintend like smaBlue[] ?? Or does this mix up MT4? Carl

According to a "golden rule" no more than 2% of capital should be risked for a single trade. Considering the above which of the following would be the best approach: 1) Position size should be no more than 2% of available capital 2) Position size can be (considerably) more than 2% of available...

I am experiencing loss of connection...my internet connection is fine...any suggestions? Thanks

This ExpertID is 0 is a problem and still here after a I restart and is not going away Does someone knows what to do?

This simply does'nt work. My EA opens lot of trades, and i just want when i close EA that EA closes all his trades. I think it doesn't work because deinit is fast, faster that time required to close all trades. In case of bugs can someone see code below? I insert CloseFunction in deinit function....

I need to know is if there are any existing open buy or sell transactions when my EA starts. Studying MQL4 language specs, the best i could do to get the details as required was as in the following function. int findopenbuysell(string buyorsell){ for (int j = 0; j < OrdersTotal(); j++) {...

To your attention.. a rather dumb question: Is it possible read and alter EA external variables with other EAs/scritps? Can external variables be changed only manually? Thanks :)

Hai any Body can help me..?

mail me if u want a wonderful combination of some indicators developed by most of our top programmers in this forum and i will teach u how to combine them, to generate up to 100 pips a day...... femiexel2002@yahoo.com

Hi, does somebody know the faith of BANKINGFX's experts?