line space factors

[masterfal]

hi all, i have a lisp routine i've been trying to set up to quickly update the line space factors of selected text to 0.8.

 

now i've got it working ok for multiline text but i want it to also include multileaders. after running its picking the multileaders and then telling me the change to 0.8 has been completed but in reality the multileaders havent been updated. they are still 1. any ideas how i can get them to update?

 

(defun c:LSFsel ( / ss i ent obj acLineSpacingStyleAtLeast mtextObj newText)
  (vl-load-com)
  (setq acLineSpacingStyleAtLeast 1)

  (if (setq ss (ssget))
    (progn
      (setq i 0)
      (while (< i (sslength ss))
        (setq ent (vlax-ename->vla-object (ssname ss i)))

        (cond
          ;; MText: apply directly
          ((= (vla-get-objectname ent) "AcDbMText")
            (vla-put-LineSpacingStyle ent acLineSpacingStyleAtLeast)
            (vla-put-LineSpacingFactor ent 0.8)
          )
          ;; MLeader: rebuild MText
          ((= (vla-get-objectname ent) "AcDbMLeader")
            (vl-catch-all-apply
              (function
                (lambda ()
                  (setq mtextObj (vlax-invoke ent 'GetMText))
                  (if mtextObj
                    (progn
                      (setq newText
                        (vla-AddMText
                          (vla-get-ModelSpace
                            (vla-get-ActiveDocument (vlax-get-acad-object)))
                          (vla-get-insertionpoint mtextObj)
                          (vla-get-width mtextObj)
                          (vla-get-TextString mtextObj)
                        )
                      )
                      (vla-put-LineSpacingStyle newText acLineSpacingStyleAtLeast)
                      (vla-put-LineSpacingFactor newText 0.8)
                      (vlax-invoke ent 'SetMText newText)
                      (vla-delete newText) ; cleanup temp MText
                    )
                  )
                )
              )
            )
          )
        )
        (setq i (1+ i))
      )
      (princ "\n Line spacing factor set to 0.8 for selected items.")
    )
    (princ "\n No objects selected.")
  )
  (princ)
)

 

[Saxlle]

Hi @masterfal,

 

I don't know what do you want to achieve with this:

 

(vl-catch-all-apply
              (function
                (lambda ()
                  (setq mtextObj (vlax-invoke ent 'GetMText))
                  (if mtextObj
                    (progn
                      (setq newText
                        (vla-AddMText
                          (vla-get-ModelSpace
                            (vla-get-ActiveDocument (vlax-get-acad-object)))
                          (vla-get-insertionpoint mtextObj)
                          (vla-get-width mtextObj)
                          (vla-get-TextString mtextObj)
                        )
                      )

 

but there is several issues in this code, like: 'GetMText doesn't exist as Method, you can't use "acLineSpacingStyleAtLeast" as variable to store the value, etc.

 

You can try with this:

 

(defun c:LSFsel ( / ss i ent obj acLineSpacingStyleAtLeast mtextObj newText)
  (vl-load-com)

  (if (setq ss (ssget))
    (progn
      (setq i 0)
      (while (< i (sslength ss))
        (setq ent (vlax-ename->vla-object (ssname ss i)))

        (cond
          ;; MText: apply directly
          ((= (vla-get-objectname ent) "AcDbMText")
            (vla-put-LineSpacingStyle ent 1)
            (vla-put-LineSpacingFactor ent 0.8)
          )
          ;; MLeader: rebuild MText
          ((= (vla-get-objectname ent) "AcDbMLeader")
            (vla-put-TextLineSpacingStyle ent acLineSpacingStyleAtLeast)
            (vla-put-TextLineSpacingFactor ent 0.80)
          )
        )
        (setq i (1+ i))
      )
      (princ "\n? Line spacing factor set to 0.8 for selected items.")
    )
    (princ "\n?? No objects selected.")
  )
  (princ)
)

 

Try it, and see if it's helpful.

[GLAVCVS]

23 minutes ago, Saxlle said:

Hi @masterfal,

 

I don't know what do you want to achieve with this:

 

(vl-catch-all-apply
              (function
                (lambda ()
                  (setq mtextObj (vlax-invoke ent 'GetMText))
                  (if mtextObj
                    (progn
                      (setq newText
                        (vla-AddMText
                          (vla-get-ModelSpace
                            (vla-get-ActiveDocument (vlax-get-acad-object)))
                          (vla-get-insertionpoint mtextObj)
                          (vla-get-width mtextObj)
                          (vla-get-TextString mtextObj)
                        )
                      )

 

but there is several issues in this code, like: 'GetMText doesn't exist as Method, you can't use "acLineSpacingStyleAtLeast" as variable to store the value, etc.

 

You can try with this:

 

(defun c:LSFsel ( / ss i ent obj acLineSpacingStyleAtLeast mtextObj newText)
  (vl-load-com)

  (if (setq ss (ssget))
    (progn
      (setq i 0)
      (while (< i (sslength ss))
        (setq ent (vlax-ename->vla-object (ssname ss i)))

        (cond
          ;; MText: apply directly
          ((= (vla-get-objectname ent) "AcDbMText")
            (vla-put-LineSpacingStyle ent 1)
            (vla-put-LineSpacingFactor ent 0.8)
          )
          ;; MLeader: rebuild MText
          ((= (vla-get-objectname ent) "AcDbMLeader")
            (vla-put-TextLineSpacingStyle ent acLineSpacingStyleAtLeast)
            (vla-put-TextLineSpacingFactor ent 0.80)
          )
        )
        (setq i (1+ i))
      )
      (princ "\n? Line spacing factor set to 0.8 for selected items.")
    )
    (princ "\n?? No objects selected.")
  )
  (princ)
)

 

Try it, and see if it's helpful.

Just one detail: it might be necessary to replace 'acLineSpacingStyleAtLeast' with 1 for MLEADERs as well.

[Saxlle]

@GLAVCVS, I tryed with "acLineSpacingStyleAtLeast", where the default value is 1 (acLineSpacingStyleAtLeast = 1). But, if you want different number than "1", definetly need to change "acLineSpacingStyleAtLeast" with desired value. As always, you're the man, thanks! 

[GLAVCVS]

No 'man': Ro'man'  

 

Edited July 4 by GLAVCVS

[Saxlle]

Yes, correct, I meant on that 

[masterfal]

when i try to run it on a multileader it says:

ActiveX Server returned an error: Parameter not optional

[GLAVCVS]

On 7/7/2025 at 3:44 AM, masterfal said:

when i try to run it on a multileader it says:

ActiveX Server returned an error: Parameter not optional

 

Probably, the answer to your question has already been answered.

Try reading all the messages in this thread.