How to use ObjectGet on a different chart?

[Luca De Marco]

Hi all,

I am using MQL4 and I found out that ObjectGet doesn't support a chartId as you can see from the following screenshot:

and therefore I am not able to use it on charts different than the one the EA is running.

Is there a way to solve this problem?

Thanks in advance.

[Mohamad Zulhairi Baba]

Luca De Marco:

Hi all,

I am using MQL4 and I found out that ObjectGet doesn't support a chartId as you can see from the following screenshot:

and therefore I am not able to use it on charts different than the one the EA is running.

Is there a way to solve this problem?

Thanks in advance.

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

[Marco vd Heijden]

It's for the current chart only.

But you can do it with the extended calls like,

ObjectGetInteger()
ObjectGetDouble()

[Luca De Marco]

I want to retrieve the OBJPROP_RAY of a trend line and that parameter is available to use only with ObjectGet. I will have the same problem with ObjectSet as I want then to set that value on another chart.

[Luca De Marco]

I don't understand why you insist with ObjectGetDouble...

As you can see it doesn't work!

[Keith Watford]

Luca De Marco:

I don't understand why you insist with ObjectGetDouble...

As you can see it doesn't work!

You are simply calling the function, you are not assigning the value to anything

[Luca De Marco]

Keith Watford:

You are simply calling the function, you are not assigning the value to anything

Did you read the error underneath the code?

It doesn't work!

[Marco vd Heijden]

Fix your code.

Look at the documentation.

Function	Action
ObjectCreate	Creates an object of the specified type in a specified chart
ObjectName	Returns the name of an object of the corresponding type in the specified chart (specified chart subwindow)
ObjectDelete	Removes the object with the specified name from the specified chart (from the specified chart subwindow)
ObjectsDeleteAll	Removes all objects of the specified type from the specified chart (from the specified chart subwindow)
ObjectFind	Searches for an object with the specified ID by the name
ObjectGetTimeByValue	Returns the time value for the specified object price value
ObjectGetValueByTime	Returns the price value of an object for the specified time
ObjectMove	Changes the coordinates of the specified object anchor point
ObjectsTotal	Returns the number of objects of the specified type in the specified chart (specified chart subwindow)
ObjectGetDouble	Returns the double value of the corresponding object property
ObjectGetInteger	Returns the integer value of the corresponding object property
ObjectGetString	Returns the string value of the corresponding object property
ObjectSetDouble	Sets the value of the corresponding object property
ObjectSetInteger	Sets the value of the corresponding object property
ObjectSetString	Sets the value of the corresponding object property
TextSetFont	Sets the font for displaying the text using drawing methods (Arial 20 used by default)
TextOut	Transfers the text to the custom array (buffer) designed for creation of a graphical resource
TextGetSize	Returns the string's width and height at the current font settings

bool ray = ObjectGetInteger(ChartID(),"Trend",OBJPROP_RAY);

[Keith Watford]

Luca De Marco:

Did you read the error underneath the code?

It doesn't work!

Oh, I see.

You should be using ObjectGetInteger() and you should be assigning its value to something or checking to see if it is true or not.

[Luca De Marco]

Keith Watford:

Oh, I see.

You should be using ObjectGetInteger() and you should be assigning its value to something or checking to see if it is true or not.

Yes I know how to use a result from a function, that code was simply to prove that it doesn't work.

However, I tried with ObjectGetInteger and it works. Thanks for the tip!

But I don't understand how you know it, because from the documentation it says tht OBJPROP_RAY must be used with ObjectGet:

[Luca De Marco]

Marco vd Heijden:

Fix your code.

Look at the documentation.

Function	Action
ObjectCreate	Creates an object of the specified type in a specified chart
ObjectName	Returns the name of an object of the corresponding type in the specified chart (specified chart subwindow)
ObjectDelete	Removes the object with the specified name from the specified chart (from the specified chart subwindow)
ObjectsDeleteAll	Removes all objects of the specified type from the specified chart (from the specified chart subwindow)
ObjectFind	Searches for an object with the specified ID by the name
ObjectGetTimeByValue	Returns the time value for the specified object price value
ObjectGetValueByTime	Returns the price value of an object for the specified time
ObjectMove	Changes the coordinates of the specified object anchor point
ObjectsTotal	Returns the number of objects of the specified type in the specified chart (specified chart subwindow)
ObjectGetDouble	Returns the double value of the corresponding object property
ObjectGetInteger	Returns the integer value of the corresponding object property
ObjectGetString	Returns the string value of the corresponding object property
ObjectSetDouble	Sets the value of the corresponding object property
ObjectSetInteger	Sets the value of the corresponding object property
ObjectSetString	Sets the value of the corresponding object property
TextSetFont	Sets the font for displaying the text using drawing methods (Arial 20 used by default)
TextOut	Transfers the text to the custom array (buffer) designed for creation of a graphical resource
TextGetSize	Returns the string's width and height at the current font settings

I looked at the documentation and as you can see from the screenshot, it says that OBJPROP_RAY must be used with ObjectGet. Can you tell me where it is written otherwise, so I won't commit the same error again with another property?

HOwever I tried with ObjectGetInteger and it worked! Thanks for the tip.