how do i make a pointer point to the pointer's pos on a ifstream object?

hiya,

ifstream fin("data.dat");

fin.seekg(20, ios::beg);
now fin's poitner is on the 20th position,

but i'd like to use another pointer to point to this position? how?
is there a getpointerposition something in the ifstream class? or do i just cast it? ie,

unsigned char *pData = &fin?

many thanks! :)

I think you should use something like: char **
but I'm not sure

and uh point it ot the ifstream object?