Re: collections

try this:

       List drives = new ArrayList();

       DispatchPtr fso = new DispatchPtr("Scripting.FileSystemObject");
       SafeArray sa = fso.get("Drives").toSafeArray;
       for(int i = sa.getLBound(); i <= sa.getUBound(); i++)
       {
          Object drive = sa.getVariant(i).toDispatch();
          drives.add(drive);
       }

       return (Object[]) drives.toArray(new Object[0]);


Heiko Selber wrote:
> I am trying to access the items of a collection, or to create a
> Enumeration for the collection, but don't seem to get anywhere.
>
> If I am wasting bandwidth with a stupid question, please simply point me
> to some stuff to read.
>
> In detail, I want to find out the properties of drives. I have managed to
> get this far with a lot of trial and error:
>
> DispatchPtr fso = new DispatchPtr("Scripting.FileSystemObject");
> DispatchPtr drives = (DispatchPtr) fso.get("Drives");
>
> According to http://msdn.microsoft.com/library/default.asp?url=/library/en-
> us/script56/html/jscoldrives.asp the next step would be to create an
> Enumeration over drives, but I cannot seem to do it.
>
> I tried to mimick some approaches the I found on this list to access
> individual members, but failed with various errors, e.g.:
>
> Object[] drives = (Object[]) drives.invokeN("Item",
>                         new Object[] { new Integer(i) });
>
> I am completely lost here, because I am not experienced with Windows
> scripting. The Jawin javadoc is not much help, either.
>
> I know that the collection has a property named Count that matches the
> expected number of items:
>
> Integer numDrives = (Integer) drives.get("Count");
>
> Thanks in advance,
>
> Heiko Selber
>
> PS: It seems that this question was already posted to the list over a year
> ago, but never answered:
>
>
>>Date:         Fri, 21 Nov 2003 11:30:43 -0500
>>From:         Ken Larson <[email protected]>
>>Subject:      collections
>
>
>>I am trying to deal with a com class that returns a collection from a
>>method.  I see there is some code in jawin to help deal with collections
>>and enumerations, but I am not sure how complete it is or how exactly to
>>use it.
>
>
>>Can anyone give me any pointers as to how I would access a collection
>>(and also logically, an enumeration) using jawin?
>
>
>>Thanks,
>
>
>>Ken Larson
>
>


--
freundliche Grüsse

Klaus Dicks
Organisationsprogrammierer

--
SHD Datentechnik GmbH, Bereich MHS, Rennweg 60, 56626 Andernach
Telefon (0 26 32) 2 95-685   Fax (0 26 32) 2 95-488
mailto:[email protected]   http://www.shd.de
--
If your program isn't worth documenting,
it probably isn't worth running
(Nagler)