topic Passing textbox value to lisp function in .NET Forum

Passing textbox value to lisp function

bahman.jf.68 — Sun, 14 May 2023 09:18:02 GMT

Hi all,

I have designed windows form via C# for a lisp program. I need to pass some text boxes value on windows form to Lisp function then running the function.

Is it possible ?

Re: Passing textbox value to lisp function

_gile — Sun, 14 May 2023 10:26:50 GMT

Hi,

You should provide more details. How do call the C# from LISP? If you use C# LispFunction method, this method can simple return a TextBox contents as a ResultBuffer which will be seen as a LISP list on the LISP side.

Re: Passing textbox value to lisp function

bahman.jf.68 — Sun, 14 May 2023 11:20:45 GMT

I don't want to call C# from Lisp,
I designed a form with C# .Net and user runs the form with command then filling the textboxes on the form. After clicking a button, all data (textboxe's values) should pass to a Lisp Function.

Suppose I have a Lisp Function like this :

(defun drawcircle (dm txt)

(setq pt (getpoint "Pick a point to add cricle")

(command "circle" pt "d" dm)

(command "text" "j" "mc" pt 2 0.0 txt)

)

There are two arguments in this function and this values should be run from C# with this values of the form. (The user enter diameter and the text on form)

Re: Passing textbox value to lisp function

_gile — Sun, 14 May 2023 12:01:40 GMT

To call a LISP function, you should use Application.Invoke() method. To make the function accessible, you have to use vl-acad-defun on the LISP side: (vl-acad-defun 'drawcircle).

var args = new ResultBuffer( new TypedValue((int)LispDataType.Text, "drawcircle"), // <- LISP function name new TypedValue((int)LispDataType.Double, double.Parse(textBoxDm.Text)), // <- dm argument new TypedValue((int)LispDataType.Text, textBoxTxt.Text)); // <- txt argument Application.Invoke(args);

IMHO, trying to mix LISP and .NET is most of the time more complex and less robust than converting the LISP part into .NET.