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(vl-load-com) why not recognise vla-get-linetype?


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I'm currently getting errors...

 

ActiveX Server returned the error: unknown name: Path

ActiveX Server returned the error: unknown name: Linetype

ActiveX Server returned the error: unknown name: IsXref

 

...even though I have (vl-load-com) at the top of the function.

 

Any assistance appreciated.

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Your object hasn't this properties. Use vlax-property-available-p function to check it. For example get ActiveDocument object and check path property:

 

Command: (setq actDoc(vla-get-ActiveDocument(vlax-get-acad-object)))
#<VLA-OBJECT IAcadDocument 01ffa950>
Command: (vlax-property-available-p actDoc 'Path)
T
Command: (vla-get-Path actDoc)
"C:\\Documents and Settings\\Administrator\\My Documents"

 

It exists. Now check Linetype property:

 

Command: (vla-get-Linetype actDoc 'Linetype)
; error: ActiveX Server returned the error: unknown name: Linetype

 

This property missed in ActiveDocument object. To look list of all properties and methods for each object use vlax-dump-object function and the ActiveX and VBA Reference inside Developer Help:

 

Command: (vlax-dump-object actDoc t)
; IAcadDocument: An AutoCAD drawing
; Property values:
;   Active (RO) = -1
;   ActiveDimStyle = #<VLA-OBJECT IAcadDimStyle 0e7f4fac>
;   ActiveLayer = #<VLA-OBJECT IAcadLayer 0e826a6c>
;   ActiveLayout = #<VLA-OBJECT IAcadLayout 0e826a1c>
;   ActiveLinetype = #<VLA-OBJECT IAcadLineType 0e826abc>
;   ActiveMaterial = #<VLA-OBJECT IAcadMaterial 0e8266fc>
;   ActivePViewport = AutoCAD: No active viewport in paperspace
;   ActiveSelectionSet (RO) = #<VLA-OBJECT IAcadSelectionSet 0e7d925c>
;   ActiveSpace = 1
;   ActiveTextStyle = #<VLA-OBJECT IAcadTextStyle 0e826b0c>
;   ActiveUCS = AutoCAD: Null object ID
;   ActiveViewport = #<VLA-OBJECT IAcadViewport 0e826b5c>
;   Application (RO) = #<VLA-OBJECT IAcadApplication 00d73d3c>
;   Blocks (RO) = #<VLA-OBJECT IAcadBlocks 0e826bac>
;   Database (RO) = #<VLA-OBJECT IAcadDatabase 0e7d850c>
;   Dictionaries (RO) = #<VLA-OBJECT IAcadDictionaries 0e826bfc>
;   DimStyles (RO) = #<VLA-OBJECT IAcadDimStyles 0e826c4c>
;   ElevationModelSpace = 0.0
;   ElevationPaperSpace = 0.0
;   FileDependencies (RO) = #<VLA-OBJECT IAcadFileDependencies 0e8309ec>
;   FullName (RO) = ""
;   Groups (RO) = #<VLA-OBJECT IAcadGroups 0e826c9c>
;   Height = 702
;   HWND (RO) = 396484
;   Layers (RO) = #<VLA-OBJECT IAcadLayers 0e826cec>
;   Layouts (RO) = #<VLA-OBJECT IAcadLayouts 0e826d3c>
;   Limits = (0.0 0.0 420.0 297.0)
;   Linetypes (RO) = #<VLA-OBJECT IAcadLineTypes 0e826d8c>
;   Materials (RO) = #<VLA-OBJECT IAcadMaterials 0e826ddc>
;   ModelSpace (RO) = #<VLA-OBJECT IAcadModelSpace2 0e826e2c>
;   MSpace = AutoCAD: Invalid mode
;   Name (RO) = "Drawing1.dwg"
;   ObjectSnapMode = 0
;   PaperSpace (RO) = #<VLA-OBJECT IAcadPaperSpace2 0e826e7c>
;   Path (RO) = "C:\\Documents and Settings\\Administrator\\My Documents"
;   PickfirstSelectionSet (RO) = #<VLA-OBJECT IAcadSelectionSet 0e7d95ec>
;   Plot (RO) = #<VLA-OBJECT IAcadPlot 0e830e2c>
;   PlotConfigurations (RO) = #<VLA-OBJECT IAcadPlotConfigurations 0e826ecc>
;   Preferences (RO) = #<VLA-OBJECT IAcadDatabasePreferences 0e8309c4>
;   ReadOnly (RO) = 0
;   RegisteredApplications (RO) = #<VLA-OBJECT IAcadRegisteredApplications 
0e826f1c>
;   Saved (RO) = 0
;   SectionManager (RO) = Exception occurred
;   SelectionSets (RO) = #<VLA-OBJECT IAcadSelectionSets 0e7fb50c>
;   SummaryInfo (RO) = #<VLA-OBJECT IAcadSummaryInfo 0e830a8c>
;   TextStyles (RO) = #<VLA-OBJECT IAcadTextStyles 0e826f6c>
;   UserCoordinateSystems (RO) = #<VLA-OBJECT IAcadUCSs 0e826fbc>
;   Utility (RO) = #<VLA-OBJECT IAcadUtility 0e8349a4>
;   Viewports (RO) = #<VLA-OBJECT IAcadViewports 0e82700c>
;   Views (RO) = #<VLA-OBJECT IAcadViews 0e82705c>
;   Width = 1066
;   WindowState = 3
;   WindowTitle (RO) = "Drawing1.dwg"
; Methods supported:
;   Activate ()
;   AuditInfo (1)
;   Close (2)
;   CopyObjects (3)
;   EndUndoMark ()
;   Export (3)
;   GetVariable (1)
;   HandleToObject (1)
;   Import (3)
;   LoadShapeFile (1)
;   New (1)
;   ObjectIdToObject (1)
;   Open (2)
;   PurgeAll ()
;   Regen (1)
;   Save ()
;   SaveAs (3)
;   SendCommand (1)
;   SetVariable (2)
;   StartUndoMark ()
;   Wblock (2)
T

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Thanks for your help, ASIM.

 

One thing I don't get is if I have already a linetype collection then why isn't an item of the collection recognised as a linetype?

 

(defun c:test ()

(vl-load-com)

(vlax-for item (vla-get-linetypes (vla-get-activedocument (vlax-get-acad-object)))

(if (= (vla-get-linetype item) :vlax-true)

(princ item)

)

(princ)

)

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why isn't an item of the collection recognised as a linetype?

 

Because Linetype (Item of Linetypes) is also object which have the Name property:

 

(defun c:test ()
(vl-load-com)
(vlax-for item (vla-get-linetypes
	 (vla-get-activedocument
	   (vlax-get-acad-object)))
(princ(strcat "\n"(vla-get-Name item)))
)
(textscr)
(princ)
)

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Thank you, ASIM. I really appreciate your tutelage.

 

I've been at this juncture before between entities and names of entites and propertoes thereof!

 

Thanks again, enjoy the weekend.

 

God bless you.

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  • 12 years later...
sivapathasunderam

Help to correct below route !

I wanted to have all line types as text file

 

(defun c:testline ( / item fileName fn exlintyp )
(vl-load-com)
(setq fileName "D:\\MyLineTypeTextFile.txt")
(vlax-for item (vla-get-linetypes (vla-get-activedocument (vlax-get-acad-object)))
(princ (strcat "\n"(vla-get-Name item ))))
(princ (strcat "\nTotal of " (itoa (sslength item )) " Line Type(s) ... " ))
(progn
(setq fn (open fileName "w"))
(setq exlintyp (vla-get-Name item))
(textscr)
(write-line exlintyp fn)
(close fn))
(princ))

 

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BIGAL

My take

 

(defun c:testline ( / item fileName fn exlintyp )
(vl-load-com)
(setq fileName "D:\\MyLineTypeTextFile.txt")
(setq lines (vla-get-linetypes (vla-get-activedocument (vlax-get-acad-object))))

(princ (strcat "\nTotal of " (itoa (vla-get-count lines)) " Line Type(s) ... " ))

(setq fn (open fileName "w"))
(vlax-for LT lines
  (princ (strcat "\n"(vla-get-Name LT )))
  (setq exlintyp (vla-get-Name LT))
  (write-line exlintyp fn)
)

(close fn)

(princ)
)
(c:testline)

 

Another similar task just did this for a particular problem.

 

; draw all linetypes as a look at
; By AlanH Oct 2021

(setq pt (getpoint "\nPick a point for linetypes"))

(setq lts  (vla-get-linetypes (vla-get-activedocument (vlax-get-acad-object))))
(setq lst '())
(vlax-for ltname lts
  (setq ltn (vla-get-name ltname))
  (princ (strcat "\n" ltn))
  (if (or (= ltn "ByBlock")(= ltn "ByLayer"))
    (princ "ByBlock or Bylayer")
    (setq lst (cons ltn lst))
  )
)
(setq lst (vl-sort lst '<))

(foreach lt lst
  (setq pt2 (mapcar '+ pt (list 60.0 0.0 0.0)))
  (command "Line" pt pt2 "")
  (vla-put-linetype (vlax-ename->vla-object  (entlast)) lt)
  (setq pt2 (mapcar '+ pt (list 75.0 0.0 0.0)))
  (command "text" pt2 3.5 0.0 lt)
  (setq pt (mapcar '+ pt (list 0.0 -10.0 0.0)))
)

 

Edited by BIGAL
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