MousePointer change during ItemClick event has no effect

I am working with your ListBar control. It is a excellent control, congratulations and thanks for shared your work in the net. I have the next question. I have a problem trying change the Windows icon cursor after of make click over a icon of the control. I have the next code in the ItemClik event of ListBar control:

Private Sub vbalListBar1_ItemClick( _
    Item As vbalLbar6.cListBarItem,  ...)
     'change the Windows icon cursor: mouse off
     Screen.Mousepointer = 11
 
     'make a job
     FillGrid
 
     'again change the icon cursor:
     Screen.Mousepointer = 0
End Sub

The problem is the mouse cursor never changes; the instruction "Screen.Mousepointer = 11" has no effect.

I tested adding "DoEvents" and nothing. Do you have any trick for this?