Discussion of article "Timeseries in DoEasy library (part 54): Descendant classes of abstract base indicator"

[MetaQuotes]

New article Timeseries in DoEasy library (part 54): Descendant classes of abstract base indicator has been published:

The article considers creation of classes of descendant objects of base abstract indicator. Such objects will provide access to features of creating indicator EAs, collecting and getting data value statistics of various indicators and prices. Also, create indicator object collection from which getting access to properties and data of each indicator created in the program will be possible.

For testing we need the indicator from the previous article without any changes.
Simply save it in a new folder \MQL5\Indicators\TestDoEasy\Part54\ under a new name TestDoEasyPart54.mq5.

Compile the indicator and launch it on the chart.
The following will be displayed in the journal: all parameters of created indicator Accelerator Oscillator in full , and then its short description:

Account 8550475: Artyom Trishkin (MetaQuotes Software Corp.) 10425.23 USD, 1:100, Hedge, Demo account MetaTrader 5
--- Initializing "DoEasy" library ---
Working with the current symbol only. Number of used symbols: 1
"EURUSD"
Working with the specified timeframe list:
"H4" "H1"
EURUSD symbol timeseries: 
- "EURUSD" H1 timeseries: Requested: 1000, Actually: 0, Created: 0, On the server: 0
- "EURUSD" H4 timeseries: Requested: 1000, Actually: 1000, Created: 1000, On the server: 6231
Time of library initializing: 00:00:00.156
 
============= Beginning of the parameter list: "Standard indicator" =============
Indicator status: Standard indicator
Indicator type: AC
Indicator timeframe: H4
Indicator handle: 10
Indicator group: Oscillator 
------
Empty value for plotting where nothing will be drawn: EMPTY_VALUE
------
Indicator symbol: EURUSD
Indicator name: "Accelerator Oscillator"
Indicator short name: "AC(EURUSD,H4)"
================== End of the parameter list: "Standard indicator" ==================
 
Standard indicator Accelerator Oscillator EURUSD H4
Buffer (P0/B0/C1): Histogram from zero line EURUSD H4
Buffer [P0/B2/C2]: Calculated buffer
"EURUSD" H1 timeseries created successfully:
- "EURUSD" H1 timeseries: Requested: 1000, Actually: 1000, Created: 1000, On the server: 6256

Author: Artyom Trishkin

[Dmitri Diall]

Hi - is it possible to create CUSTOM type indicators with a library?

[Artyom Trishkin]

Dima Diall:
Hi - is it possible to create CUSTOM type indicators with a library?

Yes, of course.

[Dmitri Diall]

Artyom Trishkin:

Yes, of course.

Could you show me an example?

[Artyom Trishkin]

Dima Diall:

Could you please show an example?

From article 40 onwards

[Alexey Viktorov]

Artyom Trishkin:
From Article 40 onwards

Why so little? You have to start from the first one. Otherwise there may be misunderstandings.

[Artyom Trishkin]

Alexey Viktorov:

Why so little? You have to start from the first one. Otherwise, there may be misunderstandings.

This man has studied the entire library thoroughly. Unlike you, my friend.)

[Dmitri Diall]

Artyom Trishkin:
From article 40 onwards

Maybe I misunderstood, but for now I don't want to write my own indicator using the DoEasy library (from article 40 onwards)... I meant creating an indicator object (as shown in articles 53-55) that loads an existing indicator of IND_CUSTOM type, for example Indicators/ZigZag.mq4 or Indicators/Examples/ZigZag.mq5; or even any indicator available at https://www.mql5.com/en/code/mt4/indicators or https://www.mql5.com/en/code/mt5/indicators.

[Artyom Trishkin]

Dima Diall:

Maybe I misunderstood, but for now I don't want to write my own indicator using DoEasy library (starting from article 40)... I meant creating an indicator object (as shown in articles 53-55) that loads an existing indicator of IND_CUSTOM type, for example Indicators/ZigZag.mq4 or Indicators/Examples/ZigZag.mq5; or even any indicator available at https://www.mql5.com/en/code/mt4/indicators or https://www.mql5.com/en/code/mt5/indicators.

Roger. Yes, it will be in the next article (#56).