//// This code is part of Document Solutions for Word demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System.IO;using System.Drawing;using GrapeCity.Documents.Word;
namespace DsWordWeb.Demos{    // Set transparent color picture in picture.    public class PicEffTransparentColor    {        public GcWordDocument CreateDocx()        {            var doc = new GcWordDocument();            Util.SetNarrowMargins(doc);            var captionStyle = doc.Styles.Add("CaptionStyle", doc.Styles[BuiltInStyleId.BodyTextFirstIndent2]);
            // Read image from a file:            var bytes = File.ReadAllBytes(Path.Combine("Resources", "Images", "wargravepink.jpg"));            // Original picture:            doc.Body.AddParagraph().AddRun().AddPicture(bytes, @"image/jpeg", 450, 300);            doc.Body.AddParagraph("Original picture", captionStyle);            // Set black to transparent:            var picture = doc.Body.AddParagraph().AddRun().AddPicture(bytes, @"image/jpeg", 450, 300);            picture.ImageData.SetColorTransparent(new UserColor(Color.Black));            // To show that parts of the picture are now transparent, fill the background with confetti:            picture.Fill.Type = FillType.Pattern;            picture.Fill.PatternFill.Type = PatternFillType.LargeConfetti;            picture.Fill.PatternFill.BackColor.RGB = Color.LightYellow;            picture.Fill.PatternFill.ForeColor.RGB = Color.Red;            doc.Body.AddParagraph($"Black is transparent, with confetti fill", captionStyle);            // Done:            return doc;        }    }}