将Image.Source绑定到System.Drawing.Image不显示

Question

I'm generating a System.Drawing.Image object which I set to my bound ViewModel property. I know the image is being generated correctly, but it is not showing in the WPF form. Is System.Drawing.Image not a compatible source type for this?

Image image = GetMyGeneratedImage();

var vm = _myViewModelFactory.CreateExport().Value;
vm.MyImage= image;

if (vm.ShowDialog(ShellView))
..

ViewModel code:

private System.Drawing.Image _myImage;

public Image MyImage
{
   get { return _myImage; }
   set { _myImage= value; }
}

XAML:

 <Image Source="{Binding MyImage}"/>

Answer 1

WPF Image control's source doesn't support System.Drawing.Image . You'll have to convert it to BitmapSource and there is no built in method available for this conversion.

But the solution is available:

   [DllImport("gdi32")]
   static extern int DeleteObject(IntPtr o);

   public static BitmapSource ToBitmapSource(System.Drawing.Bitmap source)
   {
       IntPtr ip = source.GetHbitmap();
       BitmapSource bs = null;
       try
       {
           bs = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(ip, 
              IntPtr.Zero, Int32Rect.Empty, 
              System.Windows.Media.Imaging.BitmapSizeOptions.FromEmptyOptions());
       }
       finally
       {
           DeleteObject(ip);
       }

       return bs;
   }

Reference: http://khason.net/blog/how-to-use-systemdrawingbitmap-hbitmap-in-wpf/