From: Aaron Patterson <aaron@...>
Date: 2009-08-15T02:32:07+09:00
Subject: Re: Ruby/DL question

On Fri, Aug 14, 2009 at 01:43:24PM +0900, Gin Mendi wrote:
> Aaron Patterson wrote:
> > On Thu, Aug 13, 2009 at 07:06:51PM +0900, Gin Mendi wrote:
> >>     {
> >> MY_CALLBACK = DL.callback('0PL') { |result_list, count|
> >> next record?
> > Result list should always be a pointer to a pointer, right?  If that is
> > the case, you need to create a struct of size count that contains that 
> > array.
> > 
> > From the new list struct, you should be able to access each MyStruct.
> 
> I'm not so sure how I should exactly implement this. Been researching 
> online and trying out stuff with the code but haven't gotten any luck.
> 
> I first tried creating a structure that just contains an array:
> 
> ResultList = struct [
>   "PVOID list[]"
> ]
> 
> and then using this with resultList
> 
> rl = ResultList.new(resultList)
> 
> but this doesn't seem to work for me.
> 
> How should I exactly use resultList to get the array of records (I'm 
> assuming it's always an array of records). Right now the previous code i 
> posted just captures the first record and puts it in my structure 
> properly. Still can't get the other records.

Hmmm.  You wouldn't happen to have some sample C code I could compile
and try accessing with DL?

> Thanks for reply! :)

No problem!  I'm happy to help solve this, but I want to make sure we're
on the same page.  :-)

-- 
Aaron Patterson
http://tenderlovemaking.com/