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Re: Need help with Unsatisfied Link Error

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RedGrittyBrick <RedGrittyBrick@spamweary.invalid> wrote in
news:4e204dc8$0$2490$db0fefd9@news.zen.co.uk: 

> On 15/07/2011 15:04, Rhino wrote:
>>
>> "Roedy Green" <see_website@mindprod.com.invalid> wrote in message
>> news:23c027pp1c89q50m3aqgi84qp605451ivm@4ax.com...
>>> On Fri, 15 Jul 2011 03:35:32 +0000 (UTC), Ten Blade
>>> <ten.blade@tenblade.com> wrote, quoted or indirectly quoted someone
>>> who said :
>>>
>>>> UnsatisfiedLinkError:
>>>
>>> These are surprisingly difficult to track down. See
>>> http://mindprod.com/jgloss/runerrormessages.html#UNSATISFIEDLINKERROR
>>
>>
>> Something really critical for me to know here is whether it is indeed
>> possible for a Java program to link with a DLL in a cab file.
> 
> As I understand it, Windows cabinet files (.cab) are intended for use
> by an application installer, not by another application. The installer
> would normally extract DLLs from a cabinet file and install them into 
> the correct place.
> 
Sounds reasonable. I had a vague sense that user programs don't access
files from cab files from the first but didn't know enough to be
sure.... 


> For this reason I'd be surprised if JNI had some general way of
> knowing which cab files might contain a needed DLL.
>

Sounds reasonable.
 
> 
>> I'm not
>> even positive I have the right file so I'd like to be sure that
>> linking to the DLL is possible in the first place, particularly when
>> it is within a cab file. Perhaps I need to copy it from the cab file
>> into a directory? Or can Java 'see' DLLs in a cab file the same way
>> it can read class files in a jar?
> 
> "Java Uno is the implementation of Uno (Runtime, Core Components, 
> utilities) for Java. Java Uno interoperates with Binary Uno via the
> JNI - Binary Uno bridge"
> 
> Are you certain you have properly 0installed Binary UNO?
> 

Excellent question but I'm not sure how to answer it. I know virtually 
nothing about UNO and how it works, just that it was a technique I saw 
recommended to meet my needs of creating documents that could be read by
Word.

I can't find anything in the way of documentation telling you exactly
how the UNO SDK is to be installed but, on the chance that I chose an 
inappropriate option during the installation the first time, I
uninstalled the SDK completely and then reinstalled it. There was really
just one option during the install, namely where it was supposed to be
installed relative to OpenOfficeOrg itself. I simply took the default
value this time - as I think I did the first time too - and let it
reinstall. I had no information on a better place to install it so that
seems likely to be the right place. 

Once I'd reinstalled the SDK, I noticed that there was a unowinreg.dll
in one of the folders in the SDK but this one was NOT in a cab file.
Eureka, I thought! I noted the full path to unowinreg.dll but did
nothing else about it for the moment. 

I tried preparing and running the program again but it failed on the
same error; no surprise. I tried adding the path to the unowinreg.dll to
the java.library.path but seem to have screwed it up because I couldn't
get it to see the dll for love or money. 

Finally, I googled some more and saw the suggestion that as long as
unowinreg.dll was in one of the folders specified in the
java.library.path - it didn't matter which one - I should be good to go.
I put it in an eclipse folder that was in the path, stopped and started
Eclipse, but still got the error message. Then I deleted it from the
eclipse folder and put a copy of unowinreg.dll in c:\windows\system32,
rebooted the computer and NOW I can run the program successfully!
Problem solved!! 

Thanks to you and Roedy for getting me going in the right direction!!

Now I can finally start to learn about UNO!
-- 
Ten-Blade 

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Thread

Need help with Unsatisfied Link Error Ten Blade <ten.blade@tenblade.com> - 2011-07-15 03:35 +0000
  Re: Need help with Unsatisfied Link Error Roedy Green <see_website@mindprod.com.invalid> - 2011-07-15 05:27 -0700
    Re: Need help with Unsatisfied Link Error "Rhino" <no_offline_contact_please@example.com> - 2011-07-15 10:04 -0400
      Re: Need help with Unsatisfied Link Error RedGrittyBrick <RedGrittyBrick@spamweary.invalid> - 2011-07-15 15:25 +0100
        Re: Need help with Unsatisfied Link Error Ten Blade <ten.blade@tenblade.com> - 2011-07-15 20:01 +0000
      Re: Need help with Unsatisfied Link Error Roedy Green <see_website@mindprod.com.invalid> - 2011-07-16 00:45 -0700

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