Hello:
I'm currently exporting a powerpoint presentation to jpg. It works
fine till there is a graph object embed in the presentation. In this
case the resulting image apears as a white empty image. The code i'm
using is as follows:

Private Shared Sub ConvertToImageInternal(ByVal params As Object)
       Dim paramList As Object() = CType(params, Object())
       Dim inPath As String = paramList(0)
       Dim outPath As String = paramList(1)
       Dim powerPointApp As Application = New Application()
       Dim presentation As Presentation = Nothing
       Try
           presentation = powerPointApp.Presentations.Open(inPath, _

MsoTriState.msoTrue, _

MsoTriState.msoFalse, _

MsoTriState.msoFalse)
           presentation.SaveAs(outPath, _
                               PpSaveAsFileType.ppSaveAsJPG, _
                               MsoTriState.msoCTrue)
           presentation.Close()
           powerPointApp.Quit()
       Finally
           GC.Collect()
           GC.WaitForPendingFinalizers()
           If Not presentation Is Nothing Then
               Marshal.FinalReleaseComObject(presentation)
               presentation = Nothing
           End If
           If Not powerPointApp Is Nothing Then
               Marshal.FinalReleaseComObject(powerPointApp)
               powerPointApp = Nothing
           End If
       End Try

If i export the same slides using PowerPoint app in normal way, it
just works fine. Any sugestion on how to correctly export the images?
Thanks!