Class Fl_Label
   size=32 align=8
   base size=32 base align=8
Fl_Label (0x0x7efccec436c0) 0

Vtable for Fl_Widget
Fl_Widget::_ZTV9Fl_Widget: 7u entries
0     (int (*)(...))0
8     (int (*)(...))(& _ZTI9Fl_Widget)
16    0u
24    0u
32    (int (*)(...))__cxa_pure_virtual
40    (int (*)(...))Fl_Widget::handle
48    (int (*)(...))Fl_Widget::resize

Class Fl_Widget
   size=104 align=8
   base size=104 base align=8
Fl_Widget (0x0x7efccec43720) 0
    vptr=((& Fl_Widget::_ZTV9Fl_Widget) + 16u)

Vtable for Fl_Box
Fl_Box::_ZTV6Fl_Box: 7u entries
0     (int (*)(...))0
8     (int (*)(...))(& _ZTI6Fl_Box)
16    (int (*)(...))Fl_Box::~Fl_Box
24    (int (*)(...))Fl_Box::~Fl_Box
32    (int (*)(...))Fl_Box::draw
40    (int (*)(...))Fl_Box::handle
48    (int (*)(...))Fl_Widget::resize

Class Fl_Box
   size=104 align=8
   base size=104 base align=8
Fl_Box (0x0x7efcceaf62d8) 0
    vptr=((& Fl_Box::_ZTV6Fl_Box) + 16u)
  Fl_Widget (0x0x7efccec437e0) 0
      primary-for Fl_Box (0x0x7efcceaf62d8)

