Visio event and C# application

Hi

I have a C# application which opens a macro enabled Visio document. Once opened, Visio performs some operation and does a Save at the end. In the C# application I would like to catch this save event. Following is my C# code: 

 // Create an instance of the visio application
 visioApp = new Visio.Application();

 visioApp.Documents.Open(visioFileStr);
 visioApp.DocumentSaved +=
      new Visio.EApplication_DocumentSavedEventHandler
              (Application_DocumentSaved); 

 private void Application_DocumentSaved(Visio.Document doc)
 {
 
         // message stating save event is captured
 }

The C# application does not capture the Save event triggered by the VBA code in the macro. Can a C# application capture an event triggered by VBA code? If yes, what am I doing wrong?

When I manually press the save button on the open Visio drawing, the C# application is capturing the event. But it is not capturing the event triggered through VBA code.

I really appreciate if some one could help me with this.

Thanks,

K