WPF Image控件中的ImageSource与Bitmap的互相转换

1.从bitmap转换成ImageSource

　　

        [DllImport("gdi32.dll", SetLastError = true)]



        private static extern bool DeleteObject(IntPtr hObject);

        /// <summary>

        /// 从bitmap转换成ImageSource

        /// </summary>

        /// <param name="icon"></param>

        /// <returns></returns>

        public static ImageSource ChangeBitmapToImageSource(Bitmap bitmap)

        {

            //Bitmap bitmap = icon.ToBitmap();

            IntPtr hBitmap = bitmap.GetHbitmap();

            ImageSource wpfBitmap = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(

                hBitmap,

                IntPtr.Zero,

                Int32Rect.Empty,

                BitmapSizeOptions.FromEmptyOptions());

            if (!DeleteObject(hBitmap))

            {

                throw new System.ComponentModel.Win32Exception();

            }

            return wpfBitmap;

        }

 

 

　　2.从Bitmap转换成BitmapSource        /// <summary>

        /// 从Bitmap转换成BitmapSource

        /// </summary>

        /// <param name="bmp"></param>

        /// <returns></returns>

        public static BitmapSource ChangeBitmapToBitmapSource(this Bitmap bmp)

        {

            BitmapSource returnSource;

            try

            {

                returnSource = Imaging.CreateBitmapSourceFromHBitmap(bmp.GetHbitmap(), 

                    IntPtr.Zero,

                    Int32Rect.Empty, 

                    BitmapSizeOptions.FromEmptyOptions());

            }

            catch

            {

                returnSource = null;

            }

            return returnSource;

        }

      

　　3.从Icon到ImageSource的转换

       

        /// <summary>

        /// 从Icon到ImageSource的转换

        /// </summary> 

        public ImageSource ChangeIconToImageSource(Icon icon)

        {

            ImageSource imageSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHIcon(

                icon.Handle,

                Int32Rect.Empty,

                BitmapSizeOptions.FromEmptyOptions());

           return imageSource;

        }

 

 

　　4.从Icon到ImageSource的转换

 internal static class IconUtilities

        {

            [DllImport("gdi32.dll", SetLastError = true)]

            private static extern bool DeleteObject(IntPtr hObject);

            public static ImageSource ToImageSource(this Icon icon)

            {

                Bitmap bitmap = icon.ToBitmap();

                IntPtr hBitmap = bitmap.GetHbitmap();



                ImageSource wpfBitmap = Imaging.CreateBitmapSourceFromHBitmap(

                    hBitmap,

                    IntPtr.Zero,

                    Int32Rect.Empty,

                    BitmapSizeOptions.FromEmptyOptions());



                if (!DeleteObject(hBitmap))

                {

                    throw new Win32Exception();

                }

                return wpfBitmap;

            }

            // 这个是没有附加转换的，：）

            public static ImageSource ToImageSource(this Icon icon)

            {

                ImageSource imageSource = Imaging.CreateBitmapSourceFromHIcon(

                    icon.Handle,

                    Int32Rect.Empty,

                    BitmapSizeOptions.FromEmptyOptions());

                return imageSource;

            }

        }

 

　　调用：ImageSource wpfBitmap = img.ToImageSource();

　　参考：http://stackoverflow.com/questions/1127647/convert-system-drawing-icon-to-system-media-imagesource

　　5.从ImageSource转换成Bitmap，是从ImageSource中取出UriSource.LocalPath，然后使用 new Bitmap(FileName)的方法获取。其他的方法我还没有找到

// System.Windows.Controls.Image ImgUserHeadFaceCutEdit;



string str1 = ((BitmapImage)(ImgUserHeadFaceCutEdit.Source)).UriSource.AbsolutePath;// 此路径new Bitmap(str1)无法识别



string str2 = ((BitmapImage)(ImgUserHeadFaceCutEdit.Source)).UriSource.LocalPath ; 



//Bitmap sourceImage = new Bitmap(sourceImageUri.ToString());



string str3 = strImgSourceFileName;



Console.WriteLine("AbsolutePath =" + str1);



Console.WriteLine("LocalPath =" + str2); 



Console.WriteLine("srceFileName =" + str3);

　　这是运行结果：

　　AbsolutePath =C:/Documents%20and%20Settings/zp/%E6%A1%8C%E9%9D%A2/%E6%A1%8C%E9%9D%A2%E7%A7%80/10111411409225.jpg

　　LocalPath =C:\Documents and Settings\zp\桌面\桌面秀\10111411409225.jpg

　　srceFileName =C:\Documents and Settings\zp\桌面\桌面秀\10111411409225.jpg

　　谁找到了实现方法，留言下啊

　　本文来自zoop89850的博客，原文地址:http://www.cnblogs.com/zp89850/archive/2011/10/27/2226039.html