Can't pass [] to extern function object method

[Jack]

On Monday, 16 November 2020 at 21:31:44 UTC, frame wrote:
> I have a DLL in D-code which returns an object and want to pass 
> a struct S[] to a member function of that object. The first 
> element is passed correctly, the rest is just garbage. In fact 
> the next item is just a single byte with value 0x11 following 
> some 0x00.
>
> It doesn't matter if I'm using S[], S[]* or S* with .ptr. The 
> length of the array is correct but the data isn't except the 
> first item.
>
> Is this a trap because of extern function? How can I access the 
> next item? Increasing the pointer is equivalent with S[1].

What is the function prototype like and how are you declaring 
that struct?