Setting environment variables

[jbrowne]

Hi all,

Is there a way to set environment variables (eg path and classpath of the machine) from VB6 code.

Thanks
John B

 

[mmilan]

Classpath? You sneaky Java coder you...

Check out SetEnvironmentVariable in the API.

 

[jbrowne]

Thanks for that - and seeing that you found me out, is there a way of calling the java compiler from VB and if there is, can a compile error in the Java be fed back to VB - in other words what I'm trying to do cut out the use of a batch file to do the above.

Thanks again in advance
John B

 

[mmilan]

Oooh! Narsty!!!

You can certainly invoke the Java Compiler - just use the Shell function specifying javac and it's command line arguments...

As for getting the output from that, if this is a single user system, you might consider adding " > c:\results.txt" to the value you use in Shell. That should write the output to a results.txt file, which you could then open and read with VB. It's not all that elegant though, is it?

mmilan.
Ps. I'm beginning Java - reading the tutorials as we speak...

 

[jbrowne]

Thanks again for your suggections mmilan - I'm only getting back to this now, got side-tracked on another project. The only problem I see with this is as follows;
What I hope to achive is to be able to compile a number of java programs one by one from a grid. In doing so I need to know when one is finished compiling before I call the next one so as not to keep calling the compiler as it is compiling previous programs if you see what I mean. So basically my question is - I call the first program with the compiler as you suggest above - how do I get VB to wait until the compile is complete before calling the second one and so on.

Thanks again in advance
John B