Topic: Syntax for calling commands from autocad

[SIDESHOWBOB]

Yet another newbie question here, but if I define this

Code - Auto/Visual Lisp: [Select]

1. (defun C:test (i) (* 2 i))

How do I pass the argument on the autocad command line?  Tried brackets, spaces, etc - no luck!

[JohnK]

Don't use "C:" with functions that have arguments.

[alanjt]

eg.

Code: [Select]

Command: (defun test (i) (* 2 i))
TEST
Command: (test 5)
10

[SIDESHOWBOB]

Ah, I see you are both right.  You can call functions from the command line with (test 2) same as you would from the lisp prompt.  But if you do so, autocad does not hide internal lisp functions from you!  I thought I was supposed to be able to hide anything without a C: ... never mind

[JohnK]

Not sure what you mean by "hiding". Are you talking about scope?

Just in cast you stumble upon...I'll add this (It's not "proper" so I wasn't going to mention it but you're a developer so you can add as many grains of salt to this as necessary):

Command: (defun C:test2 (i) (* 2 i))
C:TEST2

Command: (c:test2 2)
4

However, use this form instead (don't use the above).

Code - Auto/Visual Lisp: [Select]

1. (defun test (i) (* 2 i))

[Lee Mac]

I thought I was supposed to be able to hide anything without a C: ... never mind

You can if you 'compile' the code to a VLX with a separate namespace, the function won't be available outside of the namespace (unless exported using vl-doc-export)

FYI, concerning the 'c:' prefix, it merely makes the function available at the command-line, but since 'c:test' is just another symbol, the following does work (though, its not good practice):

Code: [Select]

Command: (defun c:test ( i ) (* 2 i))
C:TEST

Command: (c:test 2)
4

[JohnK]

*lol* There's an echo in here!

[alanjt]

*lol* There's an echo in here!

an echo in here!

[CAB]

And what's wrong with this?

Code: [Select]

    (defun C:test (/ i)
      (if (setq i (getreal "\nEnter number:"))
        (* 2 i)
      )
    )When you hit the space bar after test the prompt will appear, enter your number and hit enter.

[Lee Mac]

And what's wrong with this?

Nothing at all

Though I think the OP was enquiring as to how to pass arguments to LISP functions 

[JohnK]

And what's wrong with this?
...

Procedurally or semantically?


I think the OP wanted to learn how to call another AutoLisp function.

[Kerry]

[
Procedurally or semantically?

Yes.

[JohnK]

*lol*

[SIDESHOWBOB]

And what's wrong with this?

Nothing, in fact I see that's the answer I need.  While I may have been asking how to call lisp functions from the autocad command line, what I really wanted to know was how to package up my lisp scripts for users to run conveniently. Ta