FXCodeBase.COM: Forex Chart Indicators and Development

Can anyone do me a favor? I just need an allert sound in developing an indicator, but I don't want to compile a signal. How can i make it? Use "allertSound()"?

You're completely right, you can do it using

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terminal:alertSound (file, recurrent)


Or you can use

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ExtSetupSignal("Signal Name "", ShowAlert);

and

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ExtSignal(source, period, Note  , SoundFile);

Leave the opportunity to other users use to have ShowAlert option.

By setting signal parameter

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strategy.parameters:addBoolean("ShowAlert", "Show Alert", "", false);
 strategy.parameters:addBoolean("PlaySound", "Play Sound", "", true);

and then

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if instance.parameters.PlaySound then
        SoundFile = instance.parameters.SoundFile;
    else
        SoundFile = nil;
    end

I appreciate your help. I prefer the first option. May I write like this in an indicator:
terminal:allertSound("C\sounds\popmessage.wav",true)

By the way, I want to ask how to change the size of dot or bar?

Stop guys. The indicator cannot alert. Only signal can. However, I could create a small C++ library for lua which can be used from indicators and can play a sound.

I get it. Thanks for your explanation. I wonder if there is some reference book for SDK indicator development except the SDK user guide.

There is a number of books about Lua itself, but not about the indicator/signal/strategies development. For Marketscope-related things you can also look for our development forum, there is a number of articles about the indicator development. We do our best to improve the documentation, but, i'm afraid it will take an year before the documentation will be really good.

Below is the list of the currently existing articles:
Guppy's Multiple Moving Average
Piercing Line pattern detection
Yesterday's Close Value