Reading arrows from an indicator

I am creating an EA, and do not have the source code for an indicator I am referencing. The indicator only shows arrows. I am using the iCustom to pull the information from the indicator, and on bars where there is an up arrow, I get the value of the location of the arrow. Excellent. Now, when trying to get the value of the down arrow, it sends an error code. This would be fine except every bar that does not have an arrow on it, also throws the error code.

Is there a better way to refer to an indicator to get a value of both up and down arrows?

Thanks!

Make sure you check first for EMPTY_VALUE, if not then there is probably (should be) a numeric value.

I have attached an indicator. I am writing an EA to pull the timing when the arrows appear. When I use the iCustom function, I can get the instance of the up arrow, but when I try and retrieve the value for the down arrow, I get a 0. I get a 0 on all bars where there is no arrow, PLUS I get a 0 on bars when there is a down arrow. I have noticed this with many many arrow indicators! I cannot believe that this is so difficult. There is not much to the iCustom function, so I am not sure how else I can use it to get that information.

Thanks for any help!

Then maybe it isn't coming out in the index that you think it is. Try incrementing the index until you find the one that works.

Ok, so by the index, you are referring to the following location where I have index?:
I tried incrementing that, and it gave me errors unless I left it at 0. Could you take a look at this indi to see if you can see? I have attached the mq4 as well.
Thanks!

iCustom(NULL,0,"Indi Name",INDEX?,4)

hey pc..... that is what we needed....h



//-------be sure to use your indicators exact name---------

iCustom(NULL, 0, "BrainTrend",0,1) // up arrow

iCustom(NULL, 0, "BrainTrend",1,1) // down arrow

//---------------------------------------------------------

SCRIPT for testing:

Have no idea why it happened, but I was modifying the index before and could not get a return on my results. Ran your script and it is ok. Thanks for sending it!! I was right in the first place. Always second guessing myself!

Thanks again!