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Message:

Re:Jni

Posted by Allan Cahill on April 24, 2000 at 10:43 AM

> > I am trying to find out how to clear an msdos screen using java
> > In c++, there was a function called clrscr() which used to serve
> > this purpose - java does not seem to have anything similiar.
> > I have looked everywhere for a solution, and tried many different
> > suggestions none of which work.

> If you are not concerned about platform independence, which
> your question seems to imply (since you are talking about
> MS-DOS boxes), why not just call a native method that does
> your trusty old C++ clrscr()? To figure out how to do this,
> look for documentation at java.sun.com on JNI. I don't have
> anything significant about JNI here at artima.com, so I'd just
> do a search at java.sun.com for JNI (Java Native Interface).

Ok....i did some research on this, it seems straight forward enough.
I have written the c++ file I want to encorporate -
basically all it does is call the clear screen function clrscr().

However, I was following the instructions to create a shared
library and this is where i seem to be having some trouble.
The code suggested to do so is as follows (For Windows)
cl -Ic:\java\include -Ic:\java\include\win32
-LD HelloWorldImp.c -Fehello.dll
That's fine - i updated this to point to where the include
directory is on my PC.
However, when I run this I get the following
fatal error C1083: Cannot open include file: 'stdio.h':
No such file or directory
Although stdio.h does exist - the thing is I do not call/use
this header file!.
Any help would be gratefully received
rgds
Allan.

• stdio.h vicky March 02, 2001 at 4:19 PM (1)
  • stdio Matt Gerrans November 20, 2001 at 1:02 PM (0)