wpf – 如何在XAML中的容器(如dll)中获取特定图标？

using System;
using System.Diagnostics;
using System.Globalization;
using System.Runtime.Interopservices;
using System.Windows;
using System.Windows.Data;
using System.Windows.Interop;
using System.Windows.Media;
using System.Windows.Media.Imaging;

[ValueConversion(typeof(String),typeof(ImagesourcE))]
public class HabeasIcon : IValueConverter
{   
    [DllImport("sHell32.dll")]
    private static extern IntPtr ExtractIcon(IntPtr hInst,String lpszExeFilename,int nIconIndeX);

    public object Convert(object value,Type targetType,object parameter,CultureInfo culturE)
    {
        String[] filename = ((String)parameter).Split('|');

        if (targetType != typeof(ImagesourcE))
            return Binding.DoNothing;

        IntPtr hIcon = ExtractIcon(Process.GetCurrentProcess().Handle,filename[0],int.Parse(filename[1]));

        Imagesource ret = Imaging.CreateBitmapsourceFromHIcon(hIcon,Int32Rect.Empty,BitmapSizeOptions.FromEmptyOptions());
        return ret;
    }
    public object ConvertBACk(object value,CultureInfo culturE)
    { throw new NotImplementedException(); }
}

XAML：

<Image source="{Binding Converter={Staticresource iconExtractor},ConverterParameter=c:\\Windows\\System32\\sHell32.dll|72}"/>