MARKUS

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Drawing;

using System.Runtime.InteropServices;

using System.Windows.Media;

using System.Windows;

using System.Windows.Media.Imaging;

public class IconManager

{

    public static ImageSource GetIcon(string path, bool smallIcon, bool isDirectory)

    {

        uint flags = SHGFI_ICON | SHGFI_USEFILEATTRIBUTES;

        if (smallIcon)

            flags |= SHGFI_SMALLICON;

        uint attributes = FILE_ATTRIBUTE_NORMAL;

        if (isDirectory)

            attributes |= FILE_ATTRIBUTE_DIRECTORY;

        SHFILEINFO shfi;

        if (0 != SHGetFileInfo(path, attributes, out shfi, (uint)Marshal.SizeOf(typeof(SHFILEINFO)), flags))

        {

            return System.Windows.Interop.Imaging.CreateBitmapSourceFromHIcon(shfi.hIcon, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());

        }

        return null;

    }

    [StructLayout(LayoutKind.Sequential)]

    private struct SHFILEINFO

    {

        public IntPtr hIcon;

        public int iIcon;

        public uint dwAttributes;

        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]

        public string szDisplayName;

        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]

        public string szTypeName;

    }

    [DllImport("shell32")]

    private static extern int SHGetFileInfo(string pszPath, uint dwFileAttributes, out SHFILEINFO psfi, uint cbFileInfo, uint flags);

    private const uint FILE_ATTRIBUTE_READONLY = 0x00000001;

    private const uint FILE_ATTRIBUTE_HIDDEN = 0x00000002;

    private const uint FILE_ATTRIBUTE_SYSTEM = 0x00000004;

    private const uint FILE_ATTRIBUTE_DIRECTORY = 0x00000010;

    private const uint FILE_ATTRIBUTE_ARCHIVE = 0x00000020;

    private const uint FILE_ATTRIBUTE_DEVICE = 0x00000040;

    private const uint FILE_ATTRIBUTE_NORMAL = 0x00000080;

    private const uint FILE_ATTRIBUTE_TEMPORARY = 0x00000100;

    private const uint FILE_ATTRIBUTE_SPARSE_FILE = 0x00000200;

    private const uint FILE_ATTRIBUTE_REPARSE_POINT = 0x00000400;

    private const uint FILE_ATTRIBUTE_COMPRESSED = 0x00000800;

    private const uint FILE_ATTRIBUTE_OFFLINE = 0x00001000;

    private const uint FILE_ATTRIBUTE_NOT_CONTENT_INDEXED = 0x00002000;

    private const uint FILE_ATTRIBUTE_ENCRYPTED = 0x00004000;

    private const uint FILE_ATTRIBUTE_VIRTUAL = 0x00010000;

    private const uint SHGFI_ICON = 0x000000100;

    private const uint SHGFI_DISPLAYNAME = 0x000000200;

    private const uint SHGFI_TYPENAME = 0x000000400;

    private const uint SHGFI_ATTRIBUTES = 0x000000800;

    private const uint SHGFI_ICONLOCATION = 0x000001000;

    private const uint SHGFI_EXETYPE = 0x000002000;

    private const uint SHGFI_SYSICONINDEX = 0x000004000;

    private const uint SHGFI_LINKOVERLAY = 0x000008000;

    private const uint SHGFI_SELECTED = 0x000010000;

    private const uint SHGFI_ATTR_SPECIFIED = 0x000020000;

    private const uint SHGFI_LARGEICON = 0x000000000;

    private const uint SHGFI_SMALLICON = 0x000000001;

    private const uint SHGFI_OPENICON = 0x000000002;

    private const uint SHGFI_SHELLICONSIZE = 0x000000004;

    private const uint SHGFI_PIDL = 0x000000008;

    private const uint SHGFI_USEFILEATTRIBUTES = 0x000000010;

}