VBA: GetSelectedObjectCount2 = 0 after double click something?

I've developed a "QuickEdit" tool (a Userform in VBA), when I e.g. select a face my tool detects the selected feature, get all dimensions related to that feature and allows to edit them (set a fit, modify tolerances, calculate the middle of the tolerances to create a CAM model, etc.), works pretty good.

But when I double click e.g. a face, I can see the dimensions in SW and obvious something is selected:

Unfortunately it seems not possible to detect what is selected, GetSelectedObjectCount2 is always 0, below is my test code. Any ideas?

Andreas.

Option Explicit

Enum swMarkType
  swMarkAll = -1 'All selections regardless of marks
  swNoMarks = 0  'Only the selections without marks
  'Any other value = Value that was used to mark and select an object
End Enum

Sub Test_SelectedFeature()
  Dim swApp As SldWorks.SldWorks
  Dim swModel As SldWorks.ModelDoc2
  Dim swSelMgr As SldWorks.SelectionMgr
  Dim swSelObj As Object
  Dim i As Long
  Dim Data, Msg
 
  Dim InSketch As Boolean
  Dim swFeat As SldWorks.Feature
 
  Set swApp = Application.SldWorks
  Set swModel = swApp.ActiveDoc
  Set swSelMgr = swModel.SelectionManager
 
  'If we are in a sketch, the feature is the sktech itself
  If Not swModel.GetActiveSketch2 Is Nothing Then
    Set swFeat = swModel.GetActiveSketch2
    InSketch = True
  Else
    'Check the selected things
    For i = 1 To swSelMgr.GetSelectedObjectCount2(swMarkAll)
      Set swSelObj = swSelMgr.GetSelectedObject6(i, swMarkAll)
      Select Case swSelMgr.GetSelectedObjectType3(i, swMarkAll)
        Case swSelEDGES
          Data = swSelObj.GetTwoAdjacentFaces2
          Set swFeat = Data(0).GetFeature
        Case swSelectType_e.swSelFACES
          Set swFeat = swSelObj.GetFeature
        Case swSelVERTICES
          Data = swSelObj.GetAdjacentFaces
          Set swFeat = Data(0).GetFeature
        Case swSelDIMENSIONS
          Dim swDim As SldWorks.Dimension
          Set swDim = swSelObj.GetDimension
          Set swFeat = swDim.GetFeatureOwner()
        Case swSelEXTSKETCHPOINTS
          Msg = "Sketchpoint"
        Case swSelDATUMPLANES
          Msg = "Plane"
        Case Else
          Debug.Print "swSelectType_e." & swSelMgr.GetSelectedObjectType2(i)
      End Select
      If Not swFeat Is Nothing Then Exit For
    Next
  End If
 
  If Not swFeat Is Nothing Then
    MsgBox "Selected: " & swFeat.Description
  ElseIf Not IsEmpty(Msg) Then
    MsgBox Msg & " selected. Can't find the corresponding feature"
  Else
    MsgBox "Number of selected items: " & swSelMgr.GetSelectedObjectCount2(swMarkAll)
  End If
End Sub

SolidworksApi macros