Bitmap 与ImageSource之间的转换

    public class ImageConverter
    {
        [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)
        {
            IntPtr hBitmap = bitmap.GetHbitmap();
            ImageSource wpfBitmap = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
                hBitmap,
                IntPtr.Zero,
                Int32Rect.Empty,
                BitmapSizeOptions.FromEmptyOptions());
            if (!DeleteObject(hBitmap))//记得要进行内存释放。否则会有内存不足的报错。
            {
                throw new System.ComponentModel.Win32Exception();
            }
            return wpfBitmap;
        }
        /// <summary>
        /// 从Bitmap转换成BitmapSource
        /// </summary>
        /// <param name="bmp"></param>
        /// <returns></returns>
        public static BitmapSource ChangeBitmapToBitmapSource(Bitmap bmp)
        {
            BitmapSource returnSource;
            try
            {
                returnSource = Imaging.CreateBitmapSourceFromHBitmap(bmp.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
            }
            catch
            {
                returnSource = null;
            }
            return returnSource;
        }
        /// <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;
        }
    }

标签：IntPtr,转换,System,Bitmap,returnSource,ImageSource,public
来源： https://www.cnblogs.com/echohye/p/16368725.html