I have a small routine, part of a larger macro. The intent of the routine is to mark an entity with a call out on the screen. When the callout is displayed, it doesn't point to the selected entity. Do I have to specify the coordinates of the callout leader? If yes, what is the best way to get the relevant coordinates for an entity, ie an edge, vertex or surface?

Private Sub selectEntityAndAddCallout(swEntity As SldWorks.Entity, ByVal sCalloutText As String)

        Dim swModel As SldWorks.ModelDoc2

        Dim swSelMgr As SldWorks.SelectionMgr

        Dim swSelData As SldWorks.SelectData

        Dim swCallout As SldWorks.Callout

        Dim callH As New SwCalloutHandlerClass

        Dim boolstatus As Boolean

        Set swModel =

        Set swSelMgr = swModel.SelectionManager

        Set swSelData = swSelMgr.CreateSelectData

        'Select entity

        Call swModel.ClearSelection2(True)

        boolstatus = swEntity.Select4(False, swSelData)

        'Display callout

        Set swCallout = swSelMgr.CreateCallout2(1, callH)

        boolstatus = swSelMgr.SetCallout(1, swCallout) 'TODO: need to make callout point to selected entity.

        swCallout.Label2(0) = sCalloutText

        swCallout.Value(0) = ""

        swCallout.MultipleLeaders = False

        swCallout.ValueInactive(0) = True

End Sub