Check for a certain MLEADERSTYLE in Autolisp

Okay so I have to purge our drawings a lot and we have some multileader styles that are rarely used. So I am trying to create a lisp with an "if" statement that checks to see if the mleaderstyle exists. If it exists it will proceed with drawing the lisp but if it does not exist it will insert a block with the style then proceed with the rest of the actions.

Can anyone help me with an example of an if statement that would work for this?

I have been searching for quite a while with little success.

Thanks you,

J

Something like this perhaps:

(defun LM:MLeaderStylep ( style )  
 (and
   (setq dict (dictsearch (namedobjdict) "ACAD_MLEADERSTYLE"))
   (dictsearch (cdr (assoc -1 dict)) style)
 )
)

Returns T if style argument is an MLeaderStyle, else nil.

(LM:MLeaderStylep "Standard")

On 12/28/2010 at 1:06 PM, Lee Mac said:

Something like this perhaps:

 

 

(defun LM:MLeaderStylep ( style )  
 (and
   (setq dict (dictsearch (namedobjdict) "ACAD_MLEADERSTYLE"))
   (dictsearch (cdr (assoc -1 dict)) style)
 )
)

 

 

 

Returns T if style argument is an MLeaderStyle, else nil.

 

 

(LM:MLeaderStylep "Standard")

 

 

I realize this is an old thread, but thanks Lee for yet another one. Your subfunctions really make life easy. 

On 7/25/2023 at 8:57 PM, chulse said:

I realize this is an old thread, but thanks Lee for yet another one. Your subfunctions really make life easy.

You're welcome! I'm glad it helped!