extern static IntPtr CFURLCreateWithFileSystemPath (IntPtr allocator, IntPtr cfstringref, CFUrlPathStyle pathstyle, bool isdir);
extern static IntPtr CFURLCreateWithFileSystemPath(IntPtr allocator, IntPtr filePathString, CFUrlPathStyle pathStyle, bool isDirectory);
extern static IntPtr CFURLCopyFileSystemPath(IntPtr urlRef, CFUrlPathStyle pathStyle);
extern static IntPtr CFURLCreateWithFileSystemPath (IntPtr allocator, IntPtr filePathString, CFUrlPathStyle pathStyle, bool isDirectory);
extern static IntPtr CFURLCopyFileSystemPath (IntPtr urlRef, CFUrlPathStyle pathStyle);
extern static IntPtr CFURLCreateWithFileSystemPath(IntPtr allocator, IntPtr cfstringref, CFUrlPathStyle pathstyle, bool isdir);