如何从System.Drawing.Image对象在WPF中创建的ImageBrush？ [英] How to create ImageBrush from System.Drawing.Image in WPF?

问题描述

我在为System.Drawing.Image对象的形象和我需要创建一个对象的ImageBrush（用于矩形的WPF例如填充属性）从它。我想应该有办法做到这一点，但我不能找到一个。

解决方案

  VAR图像= System.Drawing.Image.FromFile（...）; //或者是任何一个来自
 VAR位=新System.Drawing.Bitmap（图片）; 
变种的BitmapSource = Imaging.CreateBitmapSourceFromHBitmap（bitmap.GetHbitmap（），
 IntPtr.Zero，
 Int32Rect.Empty，
 BitmapSizeOptions.FromEmptyOptions（）
）; 
 bitmap.Dispose（）; 
变种刷=新的ImageBrush（的BitmapSource）; 
  

这个解决方案，但是，那并不释放手柄的存储器。有关如何取出内存泄漏看到 WPF CreateBitmapSourceFromHBitmap内存泄漏

$ B信息$ b

I have image in System.Drawing.Image object and I need to create an ImageBrush object (used for Fill property of Rectangle in WPF for example) from it. I guess there should be a way to do this, but I can't find one.

解决方案

      var image = System.Drawing.Image.FromFile("..."); // or wherever it comes from
      var bitmap = new System.Drawing.Bitmap(image);
      var bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(bitmap.GetHbitmap(),
                                                                            IntPtr.Zero,
                                                                            Int32Rect.Empty,
                                                                            BitmapSizeOptions.FromEmptyOptions()
            );
      bitmap.Dispose();
      var brush = new ImageBrush(bitmapSource);          

This solution, however, doesnt free the memory of the handle. For information on how to remove the memory leak see WPF CreateBitmapSourceFromHBitmap memory leak

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