BExplorer.Shell.ShellView.UpdateIconCacheForFolder C# (CSharp) Method

    private void UpdateIconCacheForFolder(String wszPath) {
      var sfi = new SHFILEINFO();
      var res = Shell32.SHGetFileInfo(Marshal.StringToHGlobalAuto(wszPath), 0, out sfi, (Int32)Marshal.SizeOf(sfi),
                      SHGFI.IconLocation);
      Int32 iIconIndex = Shell32.Shell_GetCachedImageIndex(sfi.szDisplayName.Replace(@"\\", @"\"), sfi.iIcon, 0);
      Shell32.SHUpdateImage(sfi.szDisplayName.Replace(@"\\", @"\"), sfi.iIcon, 0x0002, iIconIndex);
      Shell32.SHChangeNotify(Shell32.HChangeNotifyEventID.SHCNE_UPDATEIMAGE,
                      Shell32.HChangeNotifyFlags.SHCNF_DWORD | Shell32.HChangeNotifyFlags.SHCNF_FLUSHNOWAIT, IntPtr.Zero,
                      (IntPtr)sfi.iIcon);
    }