Trouble with interop Import Command

[cyconnely]

I'm writing a program to import a WMF into the AutoCad Drawing. I haven't been able to find any reference for the import command, so I can't figure out why it's not working. According to Visual Studio, the Import command needs these things to work.

Code:

acadDoc.Import(FileName As String, InsertionPoint As Object, ScaleFactor As Double) As Object

Simplified Code:

Code:

Imports Autodesk.AutoCAD.Runtime
Imports Autodesk.AutoCAD.ApplicationServices
Imports Autodesk.AutoCAD.DatabaseServices
Imports Autodesk.AutoCAD.Geometry
Imports Autodesk.AutoCAD.EditorInput
Imports Autodesk.AutoCAD.Interop

Dim AcadApp As Autodesk.AutoCAD.Interop.AcadApplication
AcadApp = CType(GetObject(, "AutoCAD.Application.18.2"), Autodesk.AutoCAD.Interop.AcadApplication)
acadDoc = AcadApp.ActiveDocument

acadDoc.Import("C:\Users\C\Documents\Drawing1.wmf", New Point3d(2, 2, 0), 2.0)

When I comment out the last line of code,

Code:

acadDoc.Import("C:\Users\C\Documents\Drawing1.wmf", New Point3d(2, 2, 0), 2.0)

It runs fine.

The error I'm getting is when I run it AutoCAD,

Code:

************** Exception Text **************
System.ArgumentException: Value does not fall within the expected range.
   at System.StubHelpers.ObjectMarshaler.ConvertToNative(Object objSrc, IntPtr pDstVariant)
   at Autodesk.AutoCAD.Interop.IAcadDocument.Import(String FileName, Object InsertionPoint, Double ScaleFactor)
   at TestSelectingFiltering.TestSelecting.MyCommands.FilterBlueCircleOnLayer0()
   at Autodesk.AutoCAD.Runtime.CommandClass.InvokeWorker(MethodInfo mi, Object commandObject, Boolean bLispFunction)
   at Autodesk.AutoCAD.Runtime.CommandClass.InvokeWorkerWithExceptionFilter(MethodInfo mi, Object commandObject, Boolean bLispFunction)
   at Autodesk.AutoCAD.Runtime.PerDocumentCommandClass.Invoke(MethodInfo mi, Boolean bLispFunction)
   at Autodesk.AutoCAD.Runtime.CommandClass.CommandThunk.Invoke()

Any help would be greatly appreciated,
Thanks!

[norman.yuan · Accepted solution]

Well, the error message says exactly why the exception happems: ArgumentException, which means one of the parameter you passed to the AcadDocument.Import() method is wrong.

The second argument of the Import method expects a ARRAY of double (3 elements), representing an point. What you passed in is an Point3d staructure. Acad COM object does not know what Point3d is.

So, you need to change your code like:

Dim point(0 To 2) as double

point(0)=2.0 : point(1)=2.0 : point(2)=0.0

acadDoc.Import("C:\Users\C\Documents\Drawing1.wmf", point, 2.0)

[cyconnely]

Awesome!! Thanks, this was driving me crazy.