As we know, the leader note could attach with a drawing curve. If the curve changes, the position and the content of the leader may change as well. Then, how to know which model document (part/assembly) the leader note points to? Actually, the clue is to get the drawing curve the leader note attached with.
Following code demo assumes a leader note is selected.
Sub test()
Dim oDoc As DrawingDocument
Set oDoc = ThisApplication.ActiveDocument
'select a leader note
Dim oLeaderNote As LeaderNote
Set oLeaderNote = oDoc.SelectSet(1)
' get the last node of the leader which attaches to the drawing curve
Dim oLastNode As LeaderNode
Set oLastNode = oLeaderNote.Leader.AllNodes(oLeaderNote.Leader.AllNodes.Count)
Dim oGeIntent As GeometryIntent
Dim oAttachedDrawingCurve As DrawingCurve
Dim oDrawingView As DrawingView
Dim oModelG As Object
'check if the leader attaches to a drawing curve
If Not oLastNode.AttachedEntity Is Nothing Then
'get the corresponding curve
Set oGeIntent = oLastNode.AttachedEntity
Set oAttachedDrawingCurve = oGeIntent.Geometry
'get the drawing view
Set oDrawingView = oAttachedDrawingCurve.Parent
' check which model document the curve comes from
'the model entity
Set oModelG = oAttachedDrawingCurve.ModelGeometry
If TypeOf oModelG Is Edge Then
'SurfaceBody
Dim oSB As SurfaceBody
Set oSB = oModelG.Parent
'get the component definition of SurfaceBody
Dim oDef As ComponentDefinition
Set oDef = oSB.ComponentDefinition
'get the document
Dim oSourceDoc As Document
Set oSourceDoc = oDef.Document
End If
MsgBox "drawing view is: " & oDrawingView.Name & vbCr & "the model document is: " & oSourceDoc.FullFileName
Else
MsgBox ("no any curve is attached with the leader note！")
End If
End Sub
