using System;using System.Collections.Generic;using System.Drawing;using System.Linq;using System.Runtime.InteropServices;using System.Text;using System.Threading.Tasks;namespace Ay.Framework.WPF.Helpers{    public class SystemInfoIcon    {        [DllImport("Shell32.dll")]        private static extern IntPtr SHGetFileInfo        (            string pszPath,            uint dwFileAttributes,            out   SHFILEINFO psfi,            uint cbfileInfo,            SHGFI uFlags        );        [StructLayout(LayoutKind.Sequential)]        private struct SHFILEINFO        {            public SHFILEINFO(bool b)            {                hIcon = IntPtr.Zero; iIcon = 0; dwAttributes = 0; szDisplayName = ""; szTypeName = "";            }            public IntPtr hIcon;            public int iIcon;            public uint dwAttributes;            [MarshalAs(UnmanagedType.LPStr, SizeConst = 260)]            public string szDisplayName;            [MarshalAs(UnmanagedType.LPStr, SizeConst = 80)]            public string szTypeName;        };        private enum SHGFI        {            SmallIcon = 0x00000001,            LargeIcon = 0x00000000,            Icon = 0x00000100,            DisplayName = 0x00000200,            Typename = 0x00000400,            SysIconIndex = 0x00004000,            UseFileAttributes = 0x00000010        }        /// 
          /// 根据文件扩展名得到系统扩展名的图标          /// 
          /// 文件名(如：win.rar;setup.exe;temp.txt)          /// 图标的大小          /// 
              public static Icon GetFileIcon(string fileName, bool largeIcon)        {            SHFILEINFO info = new SHFILEINFO(true);            int cbFileInfo = Marshal.SizeOf(info);            SHGFI flags;            if (largeIcon)                flags = SHGFI.Icon | SHGFI.LargeIcon | SHGFI.UseFileAttributes;            else                flags = SHGFI.Icon | SHGFI.SmallIcon | SHGFI.UseFileAttributes;            IntPtr IconIntPtr = SHGetFileInfo(fileName, 256, out info, (uint)cbFileInfo, flags);            if (IconIntPtr.Equals(IntPtr.Zero))                return null;            return Icon.FromHandle(info.hIcon);        }        /// 
            /// 获取文件夹图标          /// 
            /// 
    
     图标
                public static Icon GetDirectoryIcon(string dirName,bool largeIcon)        {            SHFILEINFO _SHFILEINFO = new SHFILEINFO();            int cbFileInfo = Marshal.SizeOf(_SHFILEINFO);            SHGFI flags;            if (largeIcon)                flags = SHGFI.Icon | SHGFI.LargeIcon;            else                flags = SHGFI.Icon | SHGFI.SmallIcon;            IntPtr IconIntPtr = SHGetFileInfo(dirName, 0, out _SHFILEINFO, (uint)cbFileInfo, flags);            if (IconIntPtr.Equals(IntPtr.Zero))                return null;            Icon _Icon = System.Drawing.Icon.FromHandle(_SHFILEINFO.hIcon);            return _Icon;        }    }}获得系统信息的图标/// 
            /// 转换ICON为ImageSource            /// 二〇一五年二月二日 13:56:03 aaronyang            /// 
            /// icon资源            /// 
                public static ImageSource ToIcon2ImageSource(this Icon icon)            {                //Arguments checking                if (icon == null)                    throw new ArgumentNullException("icon", "The icon can not be null.");                ImageSource imageSource = Imaging.CreateBitmapSourceFromHIcon(                    icon.Handle, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());                return imageSource;            }

 

获取C盘图标：

imgIcon.Source = SystemInfoIcon.GetDirectoryIcon("c:", true).ToIcon2ImageSource() ;