Reactor Mod

[PDuMont]

Hello, I hope all is well.

 

I am trying to modify a reactor for a user who wants the viewport layer to turn off when a dimension command is active.

The code I inserted works by itself but does not work within the reactor.

 

Any ideas?

 

(foreach itm comLst
     (if (member (car args) itm)
(progn
  (if (not (tblsearch "LAYER" (caar itm)))
    (progn
      (setq nLay (vla-Add (vla-get-Layers
			    (vla-get-ActiveDocument
			      (vlax-get-acad-object)
			    ) ;_ end of vla-get-ActiveDocument
			  ) ;_ end of vla-get-Layers
			  (caar itm)
		 ) ;_ end of vla-Add
      ) ;_ end of setq
      (vla-put-Color nLay (cadar itm))
      (setq com:resFlg T)
    ) ; end progn
  ) ; end if
  (setq	com:oldLay
	 (getvar "CLAYER")
	com:resFlg T
  ) ;_ end of setq
  (setvar "CLAYER" (caar itm))
  [color="red"](if (= "DIM" (getvar 'clayer))
    (vl-cmdf "-layer" "off" "XVIEW" "" "")
  )[/color] ;_ end of if
) ; end progn
     ) ; end if
   )

[Roy_043]

You can't use commands inside reactor callbacks. Use (vla-put-layeron ... :vlax-false).

[PDuMont]

Ah, that was it.

 

Thank you.

[broncos15]

For future reference, you can also use vla-sendcommand if you need to use a command specifically in the reactor. The vla-sendcommand sends a command string to autocad.

[PDuMont]

Thank you for that Broncos, I was unfamiliar with that.

 

Would you have any reason why the AfraLisp website would report this:

 

You should never use this method to issue a command for which there is an ActiveX method available. For example, do not use SendCommand "VBALOAD ". Instead, use the LoadDVB method.

[broncos15]

Thank you for that Broncos, I was unfamiliar with that.

 

Would you have any reason why the AfraLisp website would report this:

I am not 100% sure on the why. One reason that comes to mind though is that vla-sendcommand sends stuff to the command line, which could slow down the LISP routine if is used frequently throughout it. If you want to see an example of a reactor that makes use of it, go to http://www.cadtutor.net/forum/showthread.php?93661-Lisp-for-fillet-radius./page2 for the fillet reactor and offset reactors (they both are very handy and BigAL's finalized one on page 3 is really cool).

[PDuMont]

Nice, thanks for that broncos.