Development ≫ WPF | 2010-02-02 16:59:13

BitmapSource to/from BitmapImage

Here's another part of my Converter Class: this function converts a ৺BitmapSource to an ৺BitmapImage:

Also the Conversation ৺BitmapImage to ৺BitmapSource is included - but its not worth mentioning ;-)
Due to the fact, that ৺BitmapImage inherits ৺BitmapSource, you can simple do an explicit cast on it.

 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Media.Imaging;
using System.IO;
 
namespace Dognet.Imaging
{
    partial class Converter
    {
        /// <summary>
        /// Converts an given BitmapSource to an BitmapImage
        /// </summary>
        /// <param name="bitmapSource">the BitmapSource</param>
        /// <returns>the BitmapImage</returns>
        public static BitmapImage BitmapSourceToBitmapImage(BitmapSource bitmapSource)
        {
            JpegBitmapEncoder encoder = new JpegBitmapEncoder();
            MemoryStream memoryStream = new MemoryStream();
            BitmapImage bImg = new System.Windows.Media.Imaging.BitmapImage();
 
            encoder.Frames.Add(BitmapFrame.Create(bitmapSource));
            encoder.Save(memoryStream);
                 
            bImg.BeginInit();
            bImg.StreamSource = new MemoryStream(memoryStream.ToArray());
            bImg.EndInit();
 
            memoryStream.Close();
 
            return bImg;
        }
 
        /// <summary>
        /// Converts a bitmapImage to a bitmapSource
        /// </summary>
        /// <param name="bitmapImage">the bitmapImage to convert</param>
        /// <returns>the bitmap Source</returns>
        public static BitmapSource BitmapImageToBitmapSource(BitmapImage bitmapImage)
        {
            return (BitmapSource)bitmapImage;
        }
    }
}
 