I understand that each Portion can be set to a different LanguageId (e.g., "en-US", "ja-JP") via PortionFormat. However, is there a way to specify a default LanguageId for the entire document?
Also, what’s the purpose o…...rectangle shape with text IAutoShape shp = pres.Slides[0].Shapes.AddAutoShape(ShapeType...Rectangle, 50, 50, 150, 50); shp.TextFrame.Text = "New Text";...