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How to: Use Events with the Application Object

Last modified: February 07, 2012

Applies to: Office 2013 | PowerPoint 2013 | PowerPoint Automation Services | VBA

In this article
Declare the Object Variable
Write the Event Procedures
Initializing the Declared Object

To create an event handler for an event of the Application object, you need to complete the following three steps:

  1. Declare an object variable in a class module to respond to the events.

  2. Write the specific event procedures.

  3. Initialize the declared object from another module.

Before you can write procedures for the events of the Application object, you must create a new class module and declare an object of type Application with events. For example, assume that a new class module is created and called EventClassModule. The new class module contains the following code.

Public WithEvents App As Application

After the new object is declared with events, it appears in the Object list in the class module, and you can write event procedures for the new object. (When you select the new object in the Object list, the valid events for that object are listed in the Procedure list.) Select an event from the Procedure list; an empty procedure is added to the class module.

Private Sub App_NewPresentation()

End Sub

Before the procedure will run, you must connect the declared object in the class module (App in this example) with the Application object. You can do this with the following code from any module.

Dim X As New EventClassModule
Sub InitializeApp()
    Set X.App = Application
End Sub

Run the InitializeApp procedure. After the procedure is run, the App object in the class module points to the Microsoft Office PowerPoint Application object, and the event procedures in the class module will run when the events occur.

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