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What does it mean to place an "&" in front of a variable .. example: somefunc(int ...., string &var1 ) {..} can I use "&" with ints, doubles? &Thanks

Im trying to read data from a .csv file. The file in is the following format: ex. 124124; 1241.21 12241; 131.1 3113; 1213.0 3123; 31.12 ...basically 'n' lines of semicolon delimited values. The left column has all int's while the right has all

Can a chart in metatrader be displayed on a semi-log scale

I wrote an EA that trades on trendlines. It does this by reading price values from actual trendline objects. These objects are drawn to the chart automatically by an indicator I also wrote. The trendline indicator , uses metaquotes'

I have an EA running a forward-test on a dedicated computer which is logged on to my demo account . Will metatrader knock that computer off my demo account if I were to log on to that same account from another location? ..to check my account history

In an mql4 program (and in general) what's 'harder' on the computer: processing and if() statement, initializing a variable, or redefining an existing variable? If you had to put them in order from least taxing to most with special consideration to

Can someone please explain to me what the purpose of using a "magic number" is? I understand that it's supposed to serve as a unique identifying number for each order but isn't that same function served by a ticket number? Why make up your

Hi, Im trying to find a way to import a library (or .dll file) with the filename being defined externally. For example, this is what I am trying to accomplish: User creates a file " MY_FILE.mq4" ( " MY_FILE.ex4" after compiling)

I came upon a realization today that history data are not all created equal. Data from some brokers may be more complete than others while other data still may contain many time gaps for which price data is not defined. This is very disconcerting. I

Hi, Im trying to put together my first expert advisor but ran into an issue that I cant seem to get around. Like most EA's I have my entries and exits based on some criteria, the problem Im having is that criteria may become TRUE several ticks into a

Im interested in how MetaTrader 4 is affiliated with the brokers that offer use of this platform. It seems that every major forex broker offers MT4 yet you have to set up an account with MT4 which is a different account from the one you would set up

Hi everyone! Im new to MT4 and still getting comfortable with the setup but in regards to the MACD indicator, despite there being three parameters in the properties window for the indicator (fast EMA, slow EMA, and MACD SMA) it only displays what