Plotting an array of values to the screen from an EA

Hi,

I have searched the Internet for a solution to my problem but I haven't been able to find a workable solution for me.

My problem is that I want to plot an array of double values to the screen from an EA so that they display on the chart as if they were drawn from an indicator.

I want to do this from an EA if possible as I am doing some heavy number crunching and as an indicator runs in the same thread as the MT4 GUI it makes the platform appear to hang while the process is running. I am already calling a C++ DLL to do the processing but it can still take a bit of time.

Is there any way to emulate the indicator buffers in an EA

Thanks in advance,

John

create structure:
https://docs.mql4.com/basis/types/classes

export array:
https://docs.mql4.com/files/filewritearray

if is new bar, reload array parameters and show as an indicator buffer.

Hi Beertje.

I don't really need a structure as it is only a one dimensional array.

I have steered away from writing to a file as IO is pretty slow. I will test the filewritearray though as I have never used it

If you need faster data transfer use GlobalVariable to comunicate between the EA and the indicator.

The problem there is that global variables are single values and I need to access a large array

you can combine the global variables.

EA:
if (GlobalVariableGet(datasend)==0) {GlobalVariableSet(data,value);GlobalVariableSet(datasend,1);}

Indicator
if (GlobalVariableGet(datasend)==1) {GlobalVariableSet(datasend,0);indicatorbuffer=GlobalVariableGet(data);}

send and recive infinite data.

Use FileSaveArray() and FileReadArray()

I am very surprised at the speed of FileSaveArray() and FileReadArray(). it wrote and read 2000000 values in the blink of an eye,

Thanks to everyone for the suggestions

Cheers,

John