When exporting a slide to EMF using ISlide.ConvertToImage with Background Transparency set to 100%, the resulting EMF file has a white non-transparent background. When exporting the same slide using MS PowerPoint, the resulting EMF does have the expected transparent background.
Please note, setting the ISlide.Background.Fill.FillType to FillType.None results in an EMF with a white background as well.
Could you provide an example exporting a slide to an EMF with a transparent background?
Thanks,
Troy