using System;using System.Drawing;using System.Drawing.Imaging;using System.Windows;using System.Windows.Media.Imaging;namespace Jisons{    public static class BitmapSourceHelper    {        public static Bitmap ConvertToBitmap(this BitmapSource bs)        {            return ConvertToBitmap(bs, 0, 0, bs.PixelWidth, bs.PixelHeight);        }        public static Bitmap ConvertToBitmap(this BitmapSource bs, int x, int y, int width, int height)        {            var bmp = new Bitmap(width, height, PixelFormat.Format32bppPArgb);            var bmpdata = http://www.mamicode.com/bmp.LockBits(new Rectangle(System.Drawing.Point.Empty, bmp.Size), ImageLockMode.WriteOnly, PixelFormat.Format32bppPArgb);            bs.CopyPixels(new Int32Rect(x, y, width, height), bmpdata.Scan0, bmpdata.Height * bmpdata.Stride, bmpdata.Stride);            bmp.UnlockBits(bmpdata);            return bmp;        }        public static byte[] ConvertToBytes(this BitmapSource bs)        {            return ConvertToBytes(bs, 0, 0, (int)bs.Width, (int)bs.Height);        }        public static byte[] ConvertToBytes(this BitmapSource bs, int x, int y, int width, int height)        {            var rect = new Int32Rect(x, y, width, height);            var stride = bs.Format.BitsPerPixel * rect.Width / 8;            byte[] data = http://www.mamicode.com/new byte[rect.Height * stride];            bs.CopyPixels(rect, data, stride, 0);            return data;        }        public static BitmapSource ClipBitmapSource(this BitmapSource bs, int x, int y, int width, int height)        {            var rect = new Int32Rect(x, y, width, height);            var stride = bs.Format.BitsPerPixel * rect.Width / 8;            byte[] data = http://www.mamicode.com/new byte[rect.Height * stride];            bs.CopyPixels(rect, data, stride, 0);            return BitmapSource.Create(width, height, 0, 0, System.Windows.Media.PixelFormats.Bgra32, null, data, stride);        }        public static Bitmap ConvertToBitmap(this byte[] data, int width, int height)        {            var bmp = new Bitmap(width, height);            for (int w = 0; w < width; w++)            {                for (int h = 0; h < height; h++)                {                    int index = h * width * 4 + w * 4;                    int B = data[index];                    int G = data[index + 1];                    int R = data[index + 2];                    int A = data[index + 3];                    bmp.SetPixel(w, h, System.Drawing.Color.FromArgb(A, R, G, B));                }            }            return bmp;        }        public static BitmapSource ConvertToBitmapSource(this Bitmap source)        {            return System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(source.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());        }    }}