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I’m using DSOFile to get the summary properties from some Crystal Reports report files. SummaryProperties.Thumbnail returns an object and I need to convert the object to an image so I can display it as a preview on my form. I have tried casting it to a System.Drawing.Image but I get an error “ImageConverter cannot convert from System.__ComObject.”
It would be a COM interface for images, IPicture or IPictureDisp, probably. You could use the AxHost.GetPictureFromIPicture or GetPictureFromIPictureDisp static method to make the conversion.