func (v *Dialog) GetContentArea() (*Box, error) {
	c := C.gtk_dialog_get_content_area(v.native())
	if c == nil {
		return nil, nilPtrErr
	}
	obj := glib.Take(unsafe.Pointer(c))
	b := &Box{Container{Widget{glib.InitiallyUnowned{obj}}}}
	return b, nil
}
func (v *Dialog) GetContentArea() (*Box, error) {
	c := C.gtk_dialog_get_content_area(v.native())
	if c == nil {
		return nil, nilPtrErr
	}
	obj := glib.Take(unsafe.Pointer(c))
	b := &Box{Container{Widget{glib.InitiallyUnowned{obj}}}}
	return b, nil
}
// GetContentArea() is a wrapper around gtk_dialog_get_content_area().