Обсуждение статьи "Прочие классы в библиотеке DoEasy (Часть 69): Класс-коллекция объектов-чартов"

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Опубликована статья Прочие классы в библиотеке DoEasy (Часть 69): Класс-коллекция объектов-чартов:

С этой статьи начнём разработку класса-коллекции объектов-чартов, который будет хранить в себе список-коллекцию объектов-чартов с их подокнами и индикаторами в них, и даст возможность работы с любыми выбранными чартами и их подокнами, или сразу со списком из нескольких чартов одновременно.

После запуска советника в журнал будут выведены данные о созданных объектах коллекции объектов-чартов и о чарте с программой:

Chart collection:
- Main chart window EURUSD H4 ID: 131733844391938630, HWND: 920114, Subwindows: 1
- Main chart window GBPUSD H4 ID: 131733844391938633, HWND: 592798, Subwindows: No
- Main chart window AUDUSD H1 ID: 131733844391938634, HWND: 527424, Subwindows: 2
- Main chart window USDRUB H4 ID: 131733844391938635, HWND: 920468, Subwindows: No
Subscribed to Depth of Market EURUSD
Library initialization time: 00:00:05.922
 
============= The beginning of the parameter list (Main chart window EURUSD H4) =============
Chart ID: 131733844391938630
Timeframe: H4
Drawing attributes of a price chart: Yes
Object "Chart": No
Chart on top of other charts: No
Accessing the context menu by pressing the right mouse button: Yes
Accessing the "Crosshair tool" by pressing the middle mouse button: Yes
Scrolling the chart horizontally using the left mouse button: Yes
Sending messages about mouse wheel events to all mql5 programs on a chart: No
Send notifications of mouse move and mouse click events to all mql5 programs on a chart: No
Send a notification of an event of new object creation to all mql5-programs on a chart: No
Send a notification of an event of object deletion to all mql5-programs on a chart: No
Chart type: Display as Japanese candlesticks
Price chart in the foreground: No
Price chart indent from the right border: Yes
Automatic moving to the right border of the chart: Yes
Managing the chart using a keyboard: Yes
Allowed to intercept Space and Enter key presses on the chart to activate the quick navigation bar: Yes
Scale: 2
Fixed scale mode: No
Scale 1:1 mode: No
Scale to be specified in points per bar: No
Display a symbol ticker in the upper left corner: Yes
Display OHLC values in the upper left corner: Yes
Display Bid values as a horizontal line in a chart: Yes
Display Ask values as a horizontal line in a chart: Yes
Display Last values as a horizontal line in a chart: No
Display vertical separators between adjacent periods: No
Display grid in the chart: No
Display volume in the chart: Trade volumes
Display textual descriptions of objects: Yes
The number of bars on the chart that can be displayed: 137
The total number of chart windows, including indicator subwindows: 2
Chart window handle: 920114
Number of the first visible bar in the chart: 136
Chart width in bars: 168
Chart width in pixels: 670
 Main chart window:
 - Chart height in pixels: 293
 Chart subwindow 1:
 - The distance between the upper frame of the indicator subwindow and the upper frame of the main chart window: 295
 - Chart height in pixels: 21
Chart background color: clrWhite
Color of axes, scales and OHLC line: clrBlack
Grid color: clrSilver
Color of volumes and position opening levels: clrGreen
Color for the up bar, shadows and body borders of bull candlesticks: clrBlack
Color for the down bar, shadows and body borders of bear candlesticks: clrBlack
Line chart color and color of "Doji" Japanese candlesticks: clrBlack
Body color of a bull candlestick: clrWhite
Body color of a bear candlestick: clrBlack
Bid price level color: clrLightSkyBlue
Ask price level color: clrCoral
Line color of the last executed deal price (Last): clrSilver
Color of stop order levels (Stop Loss and Take Profit): clrOrangeRed
Displaying trade levels in the chart (levels of open positions, Stop Loss, Take Profit and pending orders): Yes
Permission to drag trading levels on a chart with a mouse: Yes
Showing the time scale on a chart: Yes
Showing the price scale on a chart: Yes
Showing the "One click trading" panel on a chart: No
Chart window is maximized: Yes
Chart window is minimized: No
The chart window is docked: Yes
The left coordinate of the undocked chart window relative to the virtual screen: 2028
The top coordinate of the undocked chart window relative to the virtual screen: 100
The right coordinate of the undocked chart window relative to the virtual screen: 2654
The bottom coordinate of the undocked chart window relative to the virtual screen: 329
------
The size of the zero bar indent from the right border in percents: 18.93
Chart fixed position from the left border in percent value: 0.00
Fixed  chart maximum: 1.21320
Fixed  chart minimum : 1.16950
Scale in points per bar: 1.00
Chart minimum: 1.16950
Chart maximum: 1.21320
------
Text of a comment in a chart: ""
The name of the Expert Advisor running on the chart: "TestDoEasyPart69"
The name of the script running on the chart: ""
Indicators in the main chart window:
- Indicator Fractals
Indicators in the chart window 1:
- Indicator DeM(14)
- Indicator AMA(14,2,30)
Symbol: "EURUSD"
============= End of the parameter list (Main chart window EURUSD H4) =============

Затем сначала добавим несколько графиков, а потом удалим добавленные. В комментарии на графике будут отражаться происходящие изменения в количестве объектов-чартов в коллекции, количестве открытых в терминале графиков и значение разницы сравнения количества графиков и объектов:

Автор: Artyom Trishkin