Re: DLL

Thanks,  that is the information I was likely looking for.  I will try that
and see.  I did, however, successfully use JNIWrapper to communicate with
the DLL  (some difficulty).  I would prefer to use JAWIN and will continue
working on it.

One of the headers I am having a problem with is:
extern "C" __declspec(dllexport) int USBm_SPIMaster(unsigned char, unsigned
char *, unsigned char *);

The problem was that none of the 'shortcut' invokes worked.  I know now that
I can use the generic... but what is the equivalent 'unsigned char *' in
Java?  Is there a link to cross=reference c and Java types?


On Mon, 24 Jan 2005 21:02:59 +0100, Morten Andersen <[email protected]> wrote:

>Hi Laurence
>
>Laurence Mitchell wrote:
>> I'm not understanding something...
>>
>> I have a dll called USBm and a an associated header file.  How can I access
>> the methods inside the dll?  I tried the sample code and it workds ok.
>>
>> I adapted the sample code to use the dll I want, and I was able to get 2
>> methods to work.  The other methods would require overloading the FuntPtr
>> differently.
>>
>> Typebrowser cannot read the dll correctly...
>>
>
>The TypeBrowser mainly supports COM-objects. I assume your DLL is
>exporting "old-style" DLL entry points. So unfortunately the TypeBrowser
>can not help you generate wrapper code for this DLL.
>
>I assume that you uses the latest binary jawin release? If this is the
>case I suggest that you try to use the latest source and documentation
>directly from CVS. Especially the documentation about eg. DLL'entry
>points have been updated a lot since the last binary release (I think
>you can perhaps see it directly (without proper style) from the
>SourceForge.net CVS viewer:
>http://cvs.sourceforge.net/viewcvs.py/*checkout*/jawinproject/jawin/docs/jawinuserguide_dll.html?rev=1.6
>).
>
>This page:
>        http://jawinproject.sourceforge.net/jawindeveloper.html
>describes how you check out and build the Jawin source manually (you
>don't need to build the native source).
>
>If this doesn't help you, feel free to post eg. one of the method
>headers that you don't know how to call.
>
>Good luck and best regards
>Morten