JAVA + 32 bit Borland DLL + gpib-32.dll

Hello,
I develop a Java application, which - thanks to the Java Native
Interface - communicates with a 32 bit DLL (I called gpib-jni.dll)
I wrote this DLL with Borland C++ under Windows 98.
This DLL contains .cpp and .h files that make a link between Java
classes and another library for GPIB use: borland_gpib-32.obj
Actually, National Instruments (manufacturer of GPIB products) delivers
a gpib-32.dll file to control GPIB boards.
I installed my GPIB board and the gpib-32.dll file has been installed in
C:\WINDOWS\SYSTEM directory.
When I run my program, the Send() and Get() commands of the GPIB driver
don't work.
Perhaps there is something to do, in order gpib-32.dll understand
borland_gpib-32.obj content ?
I trie
d to include gpib-32.dll directly in my 32 bit DLL (gpib-jni.dll)
, but gpib-jni failed when linking operation.
Thanks for help.
Stephane Davy
Software & Signal Processing Engineer
Observatory of Paris - DESPA
92190 MEUDON
France

Hi,
File>Properties
what IE security zone does your page map to?
Tools>Internet Options>Security tab, security zone... by default Enhanced Protected mode is turned off for the Trusted and Intranet zones...
If your java rt app requires the 32bit environment... (viz will not run within a x64 browser process)..
then you need to add a feature test to your page.
If(navigator.platform.indexOf('32')>-1){// show message that browser is using an incompatible platform)
Usually IE will show a warning asking to remove a site from EPM (64bit mode), if it detects that no x64 bit version of the Java RT is available (installed/enabled).
Post questions about html, css and scripting for website development to the IE Web Development forum... include with your questions a link to your website or a mashup.
Regards.
Rob^_^

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SeongCho wrote:
Nyc, thank you for your reply.
By the way, I think I did all the link explained.
So I have no problem in adding NI488.2 to my program's reference using "add reference".
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But there was no gpib-32.dll installed in "c:\windows\system32" so error comes up with "unable to load gpib-32.dll".
I did the same procedure in my another PC(window 7 32 bit OS,my current PC is window 7 64 bit OS), and in that PC I can see the gpib-32.dll in that directory and program run without problem.
I do not know how gpib-32.dll was installed in my previous PC.
Thanks
Seong
Have you looked at the example programs for .NET that install with NI-488.2?
You need to start thinking in terms of .NET

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Hi,
File>Properties
what IE security zone does your page map to?
Tools>Internet Options>Security tab, security zone... by default Enhanced Protected mode is turned off for the Trusted and Intranet zones...
If your java rt app requires the 32bit environment... (viz will not run within a x64 browser process)..
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Post questions about html, css and scripting for website development to the IE Web Development forum... include with your questions a link to your website or a mashup.
Regards.
Rob^_^

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Message Edited by rolfk on 04-21-2010 08:26 AM
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a division of Test & Measurement Solutions

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