public static System.Drawing.Icon GetRegisteredIcon(string filePath)
{
var shinfo = new SHfileInfo();
Win32.SHGetFileInfo(filePath, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), Win32.SHGFI_ICON | Win32.SHGFI_SMALLICON);
return(System.Drawing.Icon.FromHandle(shinfo.hIcon));
}
public static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttributes, ref SHfileInfo psfi, uint cbSizeFileInfo, uint uFlags);