topic Re: Load lisp app from c# code and wait until it finish in .NET Forum

Load lisp app from c# code and wait until it finish

ashrafa33 — Sun, 21 Jul 2024 15:59:10 GMT

i have a lsp app that select lines and get there proerties and save them to file

i want to run this app from c# code

but when i run it from c# code the c# countine working and when it read the txt file it found it empty

after while the file will have the lines properties from lisp file

Re: Load lisp app from c# code and wait until it finish

ActivistInvestor — Sun, 21 Jul 2024 18:22:57 GMT

Should others reading your post guess what your code does?

Post your code.

You have to define a C:XXXX command function in your LISP file that runs the operation, and then call it from the Application.Invoke() method. You also have to call (vl-acad-defun) to register your command function so that it can be called by Invoke().

Re: Load lisp app from c# code and wait until it finish

ashrafa33 — Tue, 23 Jul 2024 12:01:49 GMT

Document doc = Application.DocumentManager.MdiActiveDocument;
Editor ed = doc.Editor;
try
{
doc.SendStringToExecute("(load \"test.lsp\") ", true, false, false);
doc.SendStringToExecute("test_to_start" + "\n", true, false, false);
doc.LispEnded += new EventHandler(OnLispEnded);

MessageBox.Show("it continue" );
}
catch (Autodesk.AutoCAD.Runtime.Exception ex)
{
MessageBox.Show(ex.ToString() );
}

i tried doc.LispEnded += new EventHandler(OnLispEnded);

but i did not help

(setq JS (SSGET (LIST '(0 . "LINE,ARC,POLYLINE"))))

so it give the Message ("it continue" ) before ssget

Re: Load lisp app from c# code and wait until it finish

ActivistInvestor — Tue, 23 Jul 2024 16:46:33 GMT

That code will not work (post code using the insert code button on the toolbar).

SendStringToExecute() does not execute the string until after the managed code that calls it returns. You can't wait for it. You can use Application.Invoke() to call the LISP if you define it as a C:XXXX command function and use (vl-acad-defun) to register it.