Re: using WORD pointer with Jawin - possible?

Hi Morten,

thanks a lot for the reply! I will try it out ASAP and hopefully your
advice will lead to success:-)
If I have any more problems, I'll call back:-)

Greetings,
Benjamin


Morten Andersen wrote:

> Hi Benjamin
>
> (Robert, Roger and other wondering why I haven't answered any questions
> for the last couple of months: Please see the NB at the bottom of the
> mail)
>
> Benjamin Sommerfeld wrote:
>
>> Hi altogether,
>>
>> I'm new to Jawin and want to use it to call some C-Methods.
>> I already achieved some prosperities with Jawin, but now I have a
>> problem with the "WORD" type in C.
>
>
> I think the problem is not with "word" (probably a 2 byte number? == a
> java short). But instead with the parameter being a [out]-parameter.
>
>> Here's the method syntax for the method I have problems with:
>>
>> Syntax : WORD P100X_Polling(word *wAdVal);
>> Parameter:
>> wAdVal : [Output] address of wAdVal, which store the AD data
>> Data is returned as an integer value in the range 0-4095.
>>
>> I tried to call this method the following way:
>>
>
> [out]-parameters are a little tricky. And no socalled "shortcut"-method
> exists your exact signature, so unfortunately you will have to use the
> generic "invoke", where you handle the marshalling yourself.
>
> I think this thread (use "next in topic" to follow the thread):
>
> http://discuss.develop.com/archives/wa.exe?A2=ind0406C&L=JAWIN&D=0&I=-3&P=932
>
> and especially this mail:
>
> http://discuss.develop.com/archives/wa.exe?A2=ind0406C&L=JAWIN&D=0&I=-3&P=1284
>
> is a discussion about the same type of problem.
>
> Since then, we (with the help from Alex Kotchnev) actually got this
> documented in the Jawin documentation. Please see section 3.2 of the
> docs/jawinuserguide_dll.html file (you can read it (with no style
> applied) directly from CVS here:
> http://cvs.sourceforge.net/viewcvs.py/*checkout*/jawinproject/jawin/docs/jawinuserguide_dll.html
>
> ).
>
> Unfortunately we haven't made a binary release with these changes, so it
> requires that you check out the source from SourceForge.net and build it
> yourself, as described here:
> http://jawinproject.sourceforge.net/jawindeveloper.html (you don't need
> to build the native C++ part).
>
> Hope this helps you
> Best Regards Morten
>
> NB: To Roger, Robert and others following this list, that may wonder why
> there has been almost no response from me for the last couple of months:
> My "bad" excuse, is that I changed workplace in the middle of october,
> which unfortunately required that I also moved to the other end of the
> country (well Denmark probably seems very small to you, as it is only a
> couple of 100 kilometres from where I lived before :-)). So I have been
> pretty busy with my new job, and with getting settled in my new home.
> Unfortunately I also lost my previous work email address, so for the
> future you will have to reach my on this email adress. Also I previously
> used my work-notebook for Jawin development. This, I of course also had
> to leave behind, when changing workplace. And until now I haven't really
> had time to set up a Jawin development environment on my home PC (which
> is actually a Mandrake machine, with a seldom used Windows partition).
>
> But enough of these "bad" excuses. Hopefully I will soon find time to at
> least set up a development environment again.
>
>