Placing arrows on chart with script

Hi All,

Just a quick question. Im learning to code in MQ4 and i want to place arrows on a chart at the most current bar using a script. I found an indicator that places arrows down and thought id use some of that code in my script. Heres what i got, but i cant get it to work at all. Any assistance with this would be great.

#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 SeaGreen
#property indicator_color2 Red
double CrossUp[];
double CrossDown[];
int init()
{
//---- indicators
SetIndexStyle(0, DRAW_ARROW, EMPTY,3);
SetIndexArrow(0, 233);
SetIndexBuffer(0, CrossUp);
SetIndexStyle(1, DRAW_ARROW, EMPTY,3);
SetIndexArrow(1, 234);
SetIndexBuffer(1, CrossDown);
//----
return(0);
}
//+------------------------------------------------------------------+
//| script program start function |
//+------------------------------------------------------------------+
int start()
{
//----

CrossUp[1] = Low[1] - 0.0001;

return(0);
}


Cheers
Chris

Anyone? If someone knows of a script that can place down arrows then please attach, i just need a reference.
Cheers

Open MetaEditor

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-lesson five

-Here you can learn all about how to place the arrows


Best Regards

Dale

but i don't know why do you want to write it as a script. it doesn't make any sense. use custom indicators instead.

Thanks for that.

I tried to implement this into my script and it works great if you need to place only one arrow. However i need to place numerous arrows as time goes so as the chart forms new bars i need it to place arrows at the most recent bar according to my predefined conditions. The problem is it doesn't want to place arrows at the most recent bar, it will only place arrows at the initial bar when the script/EA started.

For this code....

ObjectCreate("Arrow",OBJ_ARROW, 0, Time[0], Low[0]);

Where it says Time[0] i used the iTime() function of the currency i was using. I though maybe this would solve my problem.

Does anyone have any ideas why this occurs....All the codes are nested in a while loop....so it is constantly testing a condition every 10 milliseconds.

Thanks in advance
Gosko

you need to assign unique names to each arrow. I will typically use the name of the indicator that drew it and then add the time to the end, thereby creating a unique name for each.

I have used a count and nested the number into a string so the arrows are called arrow 1, arrow 2, arrow 3 and so forth....I can get it to place multiple arrows but they all accumulate on one bar instead of on the most recent bar?????

post your entire code for someone to look at.

as a side note, the code in your first post will do up and down arrows.

For down arrows you just need to write info to the CrossDown[] array just like you did for the CrossUp[] array.

Im at work right now......the code for the arrow generation looks like this....

ObjectCreate(arrowname, OBJ_ARROW, 0, iTime() , Marketinfo());

I think it has something to do with this objectcreate function not being compatible with the iTime function???? It doesn't make sense....

try TimeCurrent()