Private Sub expression_BeforeSize(Cancel As Boolean)
expression An expression that returns an object in the Applies To list declared with events in a class module.
Cancel Required Boolean. False when the event occurs. If the event procedure sets this argument to True, the operation is not completed and the Explorer or Inspector is not sized.
Example
The following Microsoft Visual Basic/Visual Basic for Applications (VBA) example prompts the user with a warning message before the Inspector is sized. If the user clicks Yes, the inspector can be sized. The sample code must be placed in a class module such as ThisOutlookSession, and the Initialize_Handler() subroutine should be called before the event procedure can be called by Microsoft Outlook.
Public WithEvents myIns As Outlook.Inspector
Public Sub Initalize_Handler()
Set myIns = Application.ActiveInspector
End Sub
Private Sub myIns_BeforeSize(Cancel As Boolean)
'Prompts the user before resizing the window
Dim lngAns As Long
lngAns = MsgBox("Are you sure you want to resize the current window? Use your keyboard to make your selection.", vbYesNo)
If lngAns = vbYes Then
Cancel = False
Else
Cancel = True
End If
End Sub