Pointer to member function problem: cannot bind regular function pointer directly to instance of object

class X {

public:

int i;

void MFunc() { }

};

X x;

// To declare a pointer to field i within class

// X, I could use the pointer to member syntax:

int X::*imptr = &X::i;

// However, I could also bind the pointer directly

// to an instance of the class, x:

int* iptr = &x.i;

// In terms of accessing i within an instance of X,

// the two semantics achieved the same effect;

// iptr and &(x.*imptr) point to the same address

// So now, what about pointers to member functions

// I could again use the member function syntax, as

// in the previous example:

void (X::*MFunc)() = &X::MFunc;

// But why can't I bind a regular function pointer

// directly to x, an instance of X, like I did before

void (*fptr)() = &x.MFunc; // error C2276