Article View: borland.public.jbuilder.java.api
Article #1315Re: basic JNI question
From: John McGrath TeamB
Date: Fri, 01 Mar 2002 01:39
Date: Fri, 01 Mar 2002 01:39
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1897 bytes
On Thu, 28 Feb 2002 17:42:18 -0000, Roger Woodward wrote:
> How does Java call functions residing either within a DLL or
> OCX component. Is this a simple process and are there any
> obvious pitfalls. I know that JNI exists but nothing about
> it (Ive an idea that this is what I need to investigate) so
> if you know of a good web reference as a starting point for
> reading I would be very grateful.
Essentially, JNI allows you to call a method from a DLL. The calling
convention is specified by JNI, so you will not be able to call
arbitrary methods. Typically, if you need to call some existing code,
you will write a small wrapper method that conforms to JNI specs.
Here is some information on JNI. This is included in the JDK package.
http://java.sun.com/products/jdk/1.4/docs/guide/jni/
--
Regards,
John McGrath [TeamB]
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