class Class1{ //dialog class
int m_1;

void setm1(int m);
}

class Class2{
HWND tbd;

}


Class1::Class1(){
Class2 c2;
c2.tbd = m_hWnd;
}

Class2::Class2(){
tbd->setm1 - //why wont this work???
}

All I want to do is add to a listbox on a dialog from a child class of the dialog...