Get length of dynamic variable in INTERFACE 4

[Tom_Engemann]

That said, in the CALL to the interface should you have testarray (,) or a similar construct rather than just testarray? Perhaps just one array member, testarray (1,1)?

Yes you can do that when you want just one array entry.
When you give it no index informations it will hand over the full array. The interface react like a “write work file” for example.

It work’s with a Array like this:

define data local
    1 returncode (B4)
    1 index (I2)
    1 index2 (I2)
    1 testarray (A20/1:5,1:5) /*I just rezised the array so you can see the HexDump better
end-define

for index = 1 to 5
    for index2 = 1 to 5
         compress "ffff " index " " index2 
            into testarray(index, index2)
    end-for
end-for

call INTERFACE4 "PRALL" testarray
compute returncode = ret("PRALL")
write returncode
end

Then i get the full size of the array (in this case 500Bytes ). I attached a screenshot from the logfile so you can see what i mean.