RemoveItems method example

Sub RemoveItems_Example()
    ' This example creates some entities and adds them to a
    ' selection set, and then removes 2objects from the selection set
    ' using the .RemoveItems method
    Dim Pt1(0 To 2) As Double
    Dim Pt2(0 To 2) As Double
    ' Create a Ray object in model space
    Pt1(0) = 3: Pt1(1) = 3: Pt1(2) = 0
    Pt2(0) = 1: Pt2(1) = 3: Pt2(2) = 0
    Dim rayObj As AcadRay
    Set rayObj = ThisDrawing.ModelSpace.AddRay(Pt1, Pt2)
    ' Create a polyline object in model space
    Dim points(0 To 5) As Double
    points(0) = 3: points(1) = 7
    points(2) = 9: points(3) = 2
    points(4) = 3: points(5) = 5
    Dim plineObj As AcadLWPolyline
    Set plineObj = ThisDrawing.ModelSpace.AddLightWeightPolyline(points)
    plineObj.Closed = True
    ' Create a line object in model space
    Pt1(0) = 0: Pt1(1) = 0: Pt1(2) = 0
    Pt2(0) = 2: Pt2(1) = 2: Pt2(2) = 0
    Dim lineObj As AcadLine
    Set lineObj = ThisDrawing.ModelSpace.AddLine(Pt1, Pt2)
    ' Create a circle object in model space
    Pt1(0) = 20: Pt1(1) = 30: Pt1(2) = 0
    Dim radius As Double: radius = 3
    Dim circObj As AcadCircle
    Set circObj = ThisDrawing.ModelSpace.AddCircle(Pt1, radius)
    ' Create an ellipse object in model space
    Dim majAxis(0 To 2) As Double
    Dim center(0 To 2) As Double
    Dim radRatio As Double
    center(0) = 5#: center(1) = 5#: center(2) = 0#
    majAxis(0) = 10: majAxis(1) = 20#: majAxis(2) = 0#
    radRatio = 0.3
    Dim ellObj As AcadEllipse
    Set ellObj = ThisDrawing.ModelSpace.AddEllipse(center, majAxis, radRatio)
    ZoomAll
    ' Create the new selection set
    Dim oSS As AcadSelectionSet
    Set oSS = ThisDrawing.ActiveSelectionSet 'reference the built-in or default (unnamed) selection set
    oSS.Clear 'clear the SS content since it could contain entities from previous selection
    ' Collect all the entities in the drawing into an array
    ReDim arrayOfObjects(0 To ThisDrawing.ModelSpace.Count - 1) As AcadEntity
    Dim I As Integer
    For I = 0 To ThisDrawing.ModelSpace.Count - 1
        Set arrayOfObjects(I) = ThisDrawing.ModelSpace.Item(I)
    Next
    oSS.AddItems arrayOfObjects 'Add the array of objects to the selection set
    MsgBox getContent(oSS) 'Display info on the selection set content
    ' Remove two of the objects from the selection set
    ' Note: .RemoveItems removes items from the selection set
    ' but the entities remain in the drawing.
    '(removed items are simply no longer associated to the selection set)
    Dim removeObjects(0 To 1) As AcadEntity
    Set removeObjects(0) = ellObj
    Set removeObjects(1) = lineObj
    oSS.RemoveItems removeObjects
    MsgBox "The ellipse and line have been removed from the selection set."
    MsgBox getContent(oSS) 'Display info on the selection set content
    Set oSS = Nothing
    ThisDrawing.Application.ZoomExtents
End Sub
Private Function getContent(inSelectionSet As AcadSelectionSet) As String
    Dim sBuf As String:    sBuf = vbNullString
    Dim I As Integer
    If inSelectionSet.Count = 0 Then
            sBuf = "The selection set is empty"
        Else
            sBuf = "The selection set contains:"
            For I = 0 To inSelectionSet.Count - 1
                sBuf = sBuf & vbCrLf & inSelectionSet.Item(I).ObjectName
            Next
    End If
    getContent = sBuf
End Function