See http://www.jsoftware.com/pipermail/programming/2009-April/014407.html

Also, the Quit does not close J, it simply indicates that J should close
when the client closes.

John Baker wrote:
> During the last few days I have been trying to control a JEXEServer from
> C#.   I have downloaded, studied
> and compiled Alex Rufon's example on the J wiki but I cannot get it to
> behave.
> 
> I am using the free Visual C# Express edition.  I don't believe there are
> any C# version specific issues but I could
> be wrong.  The following snippet is just about the simplest possible use of
> a JEXEServer
> 
> private void button1_Click(object sender, EventArgs e)
> {
>   object jout;
>   string jstr;
> 
>   JEXEServerLib.JEXEServer jObject = new JEXEServerLib.JEXEServer();
> 
>   jObject.Log(1);
>   jObject.Show(1);
> 
>   jObject.Do("jRes=. 'string from J'");
>   jObject.GetB("jRes", out jout);
>   jstr = (string) jout;
> 
>   textBox.Text = jstr;
>   jObject.Quit();
>   jObject = null;
> }
>  This almost works with the following exceptions:
> 
> 1) The JEXEServer never appears despite being requested with a Show(1)
> 2) The Quit() does not shutdown the J server
> 3) Exiting the C# app leads to an invalid memory reference in J.  Probably
> related to not shutting down properly.
> 
> I can see J executing as j.exe shows in the process list and I can send and
> receive data from the server.  I have used similiar code in VB for years and
> I judge people (Alex) have managed this from C# as well.  Has anyone tried
> this recently in any of the Express compilers.

----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm

Reply via email to