Re: Marshaling a byte array by ref

Hi Sean,

Just a quick add'on to your comment about invoking a traditional
DLL-exported entry with a "caller-allocated-out-array" (just to have the
knowledge on the mailing list, if somebody later searches for it):

Mcnamara, Sean D wrote:
> A "naked" C byte array from a traditional DLL can be passed in using the
> documented method on instruction_docs.html. If you want the native code
> to modify your byte array and then get the same reference (results of
> native code's operations) back into Java, and there isn't a "getter"
> method in your DLL to retrieve this pointer again, you might have a
> problem.

This is actually supported (but not well documented :-)). E.g. the
following SourceForge-thread shows how to use GetWindowText
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/windowing/windows/windowreference/windowfunctions/getwindowtext.asp),
which uses an [out] buffer for returning the text:

https://sourceforge.net/forum/forum.php?thread_id=1311741&forum_id=225268

(see post no.5, from 2005-07-05 13:07 for the "solution").

I am not really sure I explained it very well in the post, so please let
me know if you want me to clarify something from the post (although it
is pretty "far" away right now, I may be able to figure out what the
instruction string means, if I put a little thought into it).

And by the way, thanks for taking you time to answer so many questions
on the list lately - some of us "old-timers" (*absolutely* including
myself) have been a little inactive lately :-/

Best Regards
Morten