This example changes the caption of a form named Form1 to show the number of items selected in the topmost explorer window. The sample code must be placed in a class module, and the Initialize_handler
routine must be called before the event procedure can be called by Microsoft Outlook.
Dim myOlApp As Outlook.Application
Public WithEvents myOlExp As Outlook.Explorer
Public Sub Initialize_handler()
Set myOlExp = myOlApp.ActiveExplorer
End Sub
Private Sub myOlExp_SelectionChange()
Form1.Caption = myOlExp.Selection.Count & " items selected."
End Sub