Monitor IO

[inbox_pub earthlink net]

In Chapter 21 of the documentation, in the Monitor IO section, the 
signal connection statement is:
   Glib:signal_io().connect(sigc::ptr_fun(MyCallback), read_fd, 
Glib::IO_IN);
Can this be done with member functions using something like:
   Glib:signal_io().connect(sigc::mem_fun(MyCallback) . . .
or can "MyCallback" be a member function?

Thanks