Dim AcadApp As AcadApplication
Private Sub Command1_Click()
Dim lineObj As AcadLine
Dim Startpoint(0 To 2) As Double
Dim Endpoint(0 To 2) As Double
Startpoint(0) = 1#: Startpoint(1) = 1#: Startpoint(2) = 0#
Endpoint(0) = 15#: Endpoint(1) = 15#: Endpoint(2) = 0#:
Set lineObj = AcadApp.ActiveDocument.ModelSpace.Addline_(Startpoint.Endpoint)
ZoomAll
End Sub

Private Sub Form_Load()
On Error Resume Next
Set AcadApp = GetObject("AutoCAD.Application")
If Err Then
Err.Clear
Set AcadApp = CreateObject("AutoCAD.Application")
If Err Then
MsgBox ("不能运行AutoCAD 2007,请检查是否安装了AutoCAD 2007")
Exit Sub
End If
End If
AcadApp.Visible = True
End Sub

说说目的和问题

我想利用VB和CAD连在一起画一条直线，但是运行的时候显示无效限定符

Set lineObj = AcadApp.ActiveDocument.ModelSpace.Addline_(Startpoint.Endpoint)
把红色下划线删掉

还是不行，运行后Private Sub Command1_Click()变黄，是不是这个有问题

Set lineObj = AcadApp.ActiveDocument.ModelSpace.Addline(Startpoint.Endpoint)
这句还有一个错,改"."为","

又显示实时错误438

Dim AcadApp As AcadApplication


Private Sub Command1_Click()
  Dim lineObj As AcadLine
  Dim Startpoint(0 To 2) As Double
  Dim Endpoint(0 To 2) As Double
  Startpoint(0) = 1#: Startpoint(1) = 1#: Startpoint(2) = 0#
  Endpoint(0) = 15#: Endpoint(1) = 15#: Endpoint(2) = 0#:
  Set lineObj = AcadApp.ActiveDocument.ModelSpace.AddLine(Startpoint, Endpoint)
  ZoomAll
End Sub

Private Sub Form_Load()
Set AcadApp = CreateObject("AutoCAD.Application")
AcadApp.Visible = True
End Sub

用这个试吧