如何從WPF中的System.Drawing.Image創建ImageBrush？

Question

我在System.Drawing.Image對象中有圖像，我需要從它創建一個ImageBrush對象（用於在WPF中的Rectangle的Fill屬性）。我想應該有辦法做到這一點，但我找不到一個。

Answer 1

 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);   

但是，此解決方案不釋放手柄的內存。有關如何刪除信息的內存泄漏看到WPF CreateBitmapSourceFromHBitmap() memory leak

Answer 2

<Rectangle x:Name="RectangleName"      
       StrokeThickness="1" 
       HorizontalAlignment="Stretch" 
       VerticalAlignment="Stretch" 
       Width="200" 
       Height="300" 
       Stroke="Black" > 
     <Rectangle.Fill> 

       <ImageBrush ImageSource="{Binding SelectedComponentsImage}" x:Name="ComponentVisualBrush" ViewboxUnits="Absolute" 
       Viewbox="0,0,300,300" ViewportUnits="RelativeToBoundingBox" Stretch="UniformToFill" Viewport="0,0,1,1" 
       RenderOptions.EdgeMode="Aliased" /> 

     </Rectangle.Fill> 
</Rectangle> 

這與視圖模型綁定。你可以用圖像替換綁定。