Diskussion zum Artikel "Andere Klassen in der Bibliothek DoEasy (Teil 67): Objektklasse der Charts"

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Neuer Artikel Andere Klassen in der Bibliothek DoEasy (Teil 67): Objektklasse der Charts :

In diesem Artikel werde ich die Objektklasse der Charts (das einzelne Chart eines Handelsinstruments) erstellen und die Kollektionsklasse von MQL5-Signalobjekten so verbessern, dass jedes in der Kollektion gespeicherte Signalobjekt alle seine Parameter beim Aktualisieren der Liste aktualisiert.

Kompilieren Sie den EA, öffnen Sie drei Charts im Terminal und starten Sie den EA auf dem ersten von ihnen, während Sie in den Parametern vorsorglich "Nur mit dem aktuellen Symbol und Zeitrahmen arbeiten" angeben:


Während des ersten Ticks erzeugt der EA drei Chart-Objekte und zeigt neben den Meldungen über die Initialisierung verschiedener Bibliotheksklassen auch kurze Beschreibungen der drei erzeugten Chart-Objekte an:

Chart window EURUSD H4 ID: 131733844391938630, HWND: 918600
Chart window AUDUSD H1 ID: 131733844391938632, HWND: 1182638
Chart window GBPUSD H4 ID: 131733844391938633, HWND: 1705036

Anschließend die vollständige Beschreibung aller Eigenschaften des Chart-Objekts, das das erste Terminal-Chart beschreibt:

============= The beginning of the parameter list (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: Tick volumes
Display textual descriptions of objects: Yes
The number of bars on the chart that can be displayed: 96
The total number of chart windows, including indicator subwindows: 1
Chart window handle: 918600
Number of the first visible bar in the chart: 95
Chart width in bars: 117
Chart width in pixels: 466
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: No
Chart window is minimized: No
The chart window is docked: Yes
The left coordinate of the undocked chart window relative to the virtual screen: 0
The top coordinate of the undocked chart window relative to the virtual screen: 0
The right coordinate of the undocked chart window relative to the virtual screen: 0
The bottom coordinate of the undocked chart window relative to the virtual screen: 0
------
The size of the zero bar indent from the right border in percents: 18.63
Chart fixed position from the left border in percent value: 0.00
Fixed  chart maximum: 1.22650
Fixed  chart minimum : 1.17770
Scale in points per bar: 1.00
Chart minimum: 1.17770
Chart maximum: 1.22650
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Text of a comment in a chart: ""
The name of the Expert Advisor running on the chart: "TestDoEasyPart67"
The name of the script running on the chart: ""
Symbol: "EURUSD"
============= End of the parameter list (Chart window EURUSD H4) =============

Autor: Artyom Trishkin

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