MARKUS

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Media;

using System.Windows.Media.Imaging;

namespace KCOM.Common

{

    public static class ImageSourceHelper

    {

        public static async System.Threading.Tasks.Task<BitmapImage> GetDownloadImageAsync( Uri uri, double pageWidth, double pageHeight)

        {

            System.Net.Http.HttpClient httpClient = null;

            System.IO.Stream responseStream = null;

            System.IO.MemoryStream memoryStream = null;

            BitmapImage image = null;

            try

            {

                using (httpClient = new System.Net.Http.HttpClient())

                {

                    using (responseStream = await httpClient.GetStreamAsync(uri))

                    {

                        using (memoryStream = new System.IO.MemoryStream())

                        {

                            System.Diagnostics.Debug.WriteLine("이미지 다운로드");

                            await responseStream.CopyToAsync(memoryStream);

                            image = new BitmapImage();

                            image.BeginInit();

                            image.CacheOption = BitmapCacheOption.OnLoad;

                            image.StreamSource = memoryStream;

                            image.DecodePixelWidth = (int)pageWidth;

                            image.DecodePixelHeight = (int)pageHeight;

                            image.EndInit();

                            image.Freeze();

                            return image;

                        }

                    }

                }

            }

            catch (Exception ex)

            {

                throw new Exception("Image Load Error ", ex);

            }

            finally

            {

                httpClient?.Dispose();

                responseStream?.Dispose();

                memoryStream?.Dispose();

                image = null;

            }

        }

    }

}