Problem in Strategy Tester Chart (Properties) ?

[wokl]

Hello,

the following Code simply opens a sell order:

#include <trade/trade.mqh>

CTrade         m_trade;                         // The Trade Class Object
MqlTick        last_tick;                       // Get bid and ask price for current tick   
bool           trade = true;

int OnInit() {

   return(INIT_SUCCEEDED);   
}

void OnTick() {
   
   // ChartSetInteger (0, CHART_SHOW_TRADE_LEVELS, false );
   
   if(trade) {
      
      m_trade.Sell(0.1, _Symbol, last_tick.ask, last_tick.ask, last_tick.ask);
      
      trade = false;
      
   }
}

This produces the following chart in the strategy tester:

I am trying to get rid of the following Things:

1. green dotted sell line

2. the red arrow

3. the text #2 sell 0.10

I found the following two Forum posts:

https://www.mql5.com/en/forum/139145

https://www.mql5.com/en/forum/132892

From These posts, I found two possible Solutions:

1. Doing it via MQL5 code:

ChartSetInteger (0, CHART_SHOW_TRADE_LEVELS, false );

2. In the Strategy Tester Chart go to -> tools --> option --> uncheck "Show Trade Levels"

However, regardless what I do, the green line, as well as the arrow and the text stay.

I just read the post from syrvn 0 reporting a possible bug:

https://www.mql5.com/en/forum/216648#comment_5839187

That is why I also decided to ask whether anyone can confirm whether this is a bug or not or if I am doing something wrong.

Answers a greatly appreaciated.

[William Roeder]

wokl: However, regardless what I do, the green line, as well as the arrow and the text stay.

Of course they do, they are objects once created. Turn them off before opening a trade.

[wokl]

Thanks for your comment @whroeder1.

How do I do that? If I put the code

ChartSetInteger (0, CHART_SHOW_TRADE_LEVELS, false );

in the OnInit() function before any trades are opened, it still has no effect.

How can I turn / delete objects before they are created. Could you please be more precisely on how you would do that?

[wokl]

I managed to get rid of the green dotted line by setting CHART_COLOR_VOLUME equal to the background color of the chart.

I also realized that the TEXT LABEL and the SELL_ARROW are one object? Still struggeling to delete it. Any ideas?

#include <trade/trade.mqh>

CTrade         m_trade;                         // The Trade Class Object
MqlTick        last_tick;                       // Get bid and ask price for current tick   
bool           trade = true;

int OnInit() {

ChartSetInteger(0, CHART_COLOR_VOLUME, clrBlack);

ChartRedraw();

   return(INIT_SUCCEEDED);   
}

void OnTick() {
   
   if(trade) {
      
      m_trade.Sell(0.1, _Symbol, last_tick.ask, 0, 0, NULL);
           
      trade = false;
      
   }
}

[Jack Thomas]

wokl:

However, regardless what I do, the green line, as well as the arrow and the text stay.

You have to delete the objects or they stay on screen.

https://docs.mql4.com/objects/objectdelete

- Jack

[wokl]

Jack Thomas:

You have to delete the objects or they stay on screen.

https://docs.mql4.com/objects/objectdelete

- Jack

Hi,

I am working with MQL5, so maybe there is a better way / functions I can use?

[Jack Thomas]

wokl:

Hi,

I am working with MQL5, so maybe there is a better way / functions I can use?

For MQL5: https://www.mql5.com/en/docs/objects/objectdelete

- Jack

[Jack Thomas]

If you want to clear ALL the objects from your chart you can also use:

https://www.mql5.com/en/docs/objects/objectdeleteall

- Jack

[wokl]

Thank you! I will have a look into that tomorrow. 

I just quickly checked the ObjectDelete function and it uses the Name of the object to delete. When I create the order above, I don't know the Name of the arrow object created automatically.

So I guess, I have to iterate over all existing objects and pick up the OBJ_ARROW_SELL (maybe _DOWN) and delete that one?

Are my thoughts plausible?

[Jack Thomas]

wokl:

Thank you! I will have a look into that tomorrow. 

I just quickly checked the ObjectDelete function and it uses the Name of the object to delete. When I create the order above, I don't know the Name of the arrow object created automatically.

So I guess, I have to iterate over all existing objects and pick up the OBJ_ARROW_SELL (maybe _DOWN) and delete that one?

Are my thoughts plausible?

No need to iterate all the existing objects.

If you want to just delete all the down arrows on screen for example, you can specify the object type.

Example from documentation:

https://www.mql5.com/en/docs/objects/objectdeleteall

int  ObjectsDeleteAll(
   long           chart_id,   // chart ID
   const string     prefix,   // prefix in object name
   int       sub_window=-1,   // window index
   int      object_type=-1    // object type
   );

I've found the following page helpful for object types.

https://www.mql5.com/en/docs/constants/objectconstants/enum_object

- Jack

[Alain Verleyen]

I edited the topic's title. There is no bug in Strategy Tester here.