How to return void function pointer

[umen]

hello all
im facing a problem that confusing me allot dealing member functions
here is the thing :

i have class A :

class A {

getCallBack(void (*)()){
}

}

then i have class B:
that has few member functions that i like to pass to class A function

class B {
void CallBack1(void){
}

}

now no matter what i do im keep getting compiler errors
for example when i try to do
B b = new B()
A::getCallBack(b->CallBack1);

now the second question is how can i construct factory class that will return me the void callback members functions
accourding to something .
here im also facing allots of problems for example if i try to do something like this :

void (*B::CreateCallBack(int type))(void){

void (*p)(void);

switch(type){

case 1: {

p= B.*CallBack1();

break;
}
default:
break;

}
return p;
}



what im doing wrong here ?