Capture data from DataWindow in metatrader? | Forex Factory

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Capture data from DataWindow in metatrader?

  • #1
  • First Post: Edited 6:01pm Dec 8, 2018 5:48pm | Edited 6:01pm
Greetings,
I have an indicator and I would like to capture the data provided in "Data Window" of metatrader. Is this possible?
Well it does not need to be the data window, but I want so save the current output of the indicator.
For example -
I have RSI indicator active on one chart. I want grab the current value of rsi indicator and use it elsewhere.
Anything out here for free or do I have to start learn Mql4?
  • #2
  • Dec 8, 2018 6:21pm Dec 8, 2018 6:21pm
Quoting FxChampion9
Greetings, I have an indicator and I would like to capture the data provided in "Data Window" of metatrader. Is this possible? Well it does not need to be the data window, but I want so save the current output of the indicator. For example - I have RSI indicator active on one chart. I want grab the current value of rsi indicator and use it elsewhere. Anything out here for free or do I have to start learn Mql4?
Often you will find it been asked for or has been done before, a quick search on the FF Forum search tab for "RSI value" and I found this. https://www.forexfactory.com/showthread.php?p=4908286#post4908286
Trade what you see not what you hope
  • #3
  • Dec 8, 2018 6:40pm Dec 8, 2018 6:40pm
RSI was just an example =)
Think I need to but on helmet and protective suit and learn MQL4 language. However good link, since I can learn from the code written.
Many thanks.
  • #4
  • Edited 6:35am Dec 9, 2018 6:17am | Edited 6:35am
Quoting FxChampion9
...I have an indicator and I would like to capture the data provided in "Data Window" of metatrader...I want so save the current output of the indicator...
If the indicator generates output in the data window you don't need any special tricks. Just use regular iCustom() calls and iterate through the buffers until you find the one you are interested in. Then do with the data what you want.

Example of a closed-source proprietary indicator where I read the buffers and feed the data into my own indicator: BFX Delta.mq4
That's essentially:
Inserted Code
int bufferId = 0;
int bar = 0;
double value = iCustom(NULL, NULL, closeSourceIndicatorName, ...any-number-of-parameters..., bufferId, bar);
Print("value: ", value);

Now you try one buffer after another (change bufferId from 0 to 7 or more). The buffer points to the line in the data window (but the data window may skip one or more buffers), the bar points to the bar in which value you are interested in. 0 = current (youngest) bar, 1 = previous bar...

Screenshot here in the first post. The bottom most indicator is the closed-source scam, the upper subwindow indicator is mine which reads and re-interpretes the original indicator's values.

Yes, you need to learn MQL :-)
It takes blood, sweat and enough tears to wash away the blood.
  • #5
  • Dec 9, 2018 6:26am Dec 9, 2018 6:26am
Quoting emmzett
{quote} If the indicator generates output in the data window you don't need any special tricks. Just use regular iCustom() calls and iterate through the buffers until you find the one you are interested in. Then do with the data what you want. Example of a closed-source proprietary indicator where I read the buffers and feed the data into my own indicator: BFX Delta.mq4 That's essentially: int bufferId = 0; int bar = 0; double value = iCustom(NULL,...
Emmzett thank you for reply and help. Appreciate very much! There are sadly little books on the subject but syntacs looks lik c++. I am a python newbie though =)
Will dig deep, those who search will find!
Peace be upon you!
  • #6
  • Dec 9, 2018 8:39am Dec 9, 2018 8:39am
Quoting FxChampion9
There are sadly little books on the subject but syntacs looks lik c++.
//------

hey fx...... that is because metaquotes is tryin to wean us off mq4 and on to mq5 which is better..... the brokers seem to be resisting.....

you can download the mq4 book in both pdf and chm formats..... the link below is the chm which must be 'unblocked' in the properties before it will open......

older versions of the editor have the chm built in......h

//------

https://www.mql4.com/files/mql4bookenglish.chm
to trade and code, keep both simple... no call to impress....h
  • #7
  • Last Post: Dec 9, 2018 11:08am Dec 9, 2018 11:08am
Here is a link to the complete reference: https://github.com/rosasurfer/mt4-mq...0Reference.chm
It takes blood, sweat and enough tears to wash away the blood.
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