Recently I was working with a code to open a PowerPoint presentation (by vb.net) object and process each slide by slide. If processing slide is not null or a master slide I need to skip and go to the next one.

Can anyone show me how to check whether a given slide is a master slide? Is there any way to check it by slide type?

Public Sub CheckForProprtychecker(ByVal Presn As PowerPoint.Presentation)

For SlideIndex As Integer = 1 To Presn.Slides.Count()
      If Presn.Slides(SlideIndex) Is Nothing Then
         Continue For
      End If
     ‘do other process  
Next

End Sub